I spent about an hour and a half looking at every champion's page on the new beta website.
There are several unexplained things, possible mistakes, omissions, and stuff that makes little/no sense. I made a thread about it on the EUW GD, but I'll copy/paste the thread here so we can discuss it here [I know most people here are NA]
WARNING - LONG POST IS LONG
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Note: There have already been red posts explaining that most of this will be explained at some point if not already. Also there is a bug with showing multiple associations/allegiances, although this only effects a few champions [Mostly Yordles].
Possible Errors will also be listed in bold.
Arhi - Shown to be friends with Wukong, not shown before.
Akali - Nothing new
Alistar - Friends with Xin Zhao. Most likely as both have history of being gladiatorial slaves
Amumu - Listed as Bandle City, which is new. [Shurima will likely be added as a 2nd]. Only association is Annie, despite this.
Aniva - Although obvious, while not outright stated, Rival with Brand
Annie - An independent
Ashe - Does not list Lissandra as a rival, as she is yet unaware
Blitzcrank - Viktor and Orianna listed as Friends, new splash image as header
Brand - Rivals with Aniva, Lissandra... and Ryze?! The first two are obvious, the latter, not so.
Caitlyn - Listed as friends with Jayce and Ezreal, which was never outright stated before. Vi is listed as a friend, but not also a Rival. [Rival does not have to be unfriendly, see Draven/Darius]
Cassiopeia - The BIG ONE. Listed as Shurima, but reds have confirmed she is Noxus/Shurima, and they are adding some journey to this area as part of her lore. Freinds with Katarina, Renekton [Can Renekton even feel freindship?] and Xerath, indicateing she brings chaos to the region. Nasus is listed as an enemy as well as Sivir.
Cho'Gath: New splash on header. Listed as friends with Kog'Maw and Kah'Zix
Corki: Listed as Bandle City. Will be Bandle City / Piltover
Darius - Freinds are nothing new [Swain and Draven]. Rivals are Katarina, Draven [Yes, he's both. Blame his ego], and Vladimir [Who's new but not exactly a shock]
Diana - Listed as Mt.Targon when she should be independent, as she left there and kinda killed the elders. Unless her exile counts as Riven-esque, and she's still loyal to Targon, just not it's current state. No association with Pantheon.
Mundo - May be listed as Zaun/Noxus, since he works in Noxus at times, his lore outright states it. Only friends with Mundo, because, as a red puts it 'he's... well... mundo'
Draven - Both friends and rivals with Darius.
Elise - Friends with LeBlanc and Vladimir for some unknown reason.
Evelynn - Rivals with Twisted Fate
Ezreal - 'Friends' with Lux. [Although Lyte [As in the Shopkeeper in the new map], and the teaser of the new champion suggest 'more then friends']. As well as Jayce and Caitlyn who before were never outright stated, but likely.
Fiddlesticks - Independent. Despite being locked in a room he never left, he is somehow friends with Shaco and more interestingly, Nocturne.
Fiora - Rivals with Jax is obvious. Rivals with Lux is not.
Fizz - Friends with Nami, confirming their link possibly. Rivals with Nautilus for an unknown reason.
Galio - Freinds with Poppy was known. Friends with Kayle and Shyvana was not.
Gangplank - Nothing new here, Rival; MF
Garen - Look closely, and you can see his header splash is actually slightly different in terms of background [Blue flags, not red]. Nothing new from his Friends/Rivals. I suspect he is one of those who simply ran out of room.
Gragas - Friends with Tryndamere now as well. A red posted that they are also drinking buddies. Jax is still there too.
Graves - Listed as Bilgewater. Only association is TF.
Hecarim - 'Freinds' with Mordekaiser was known. Yorick and Thresh? Not so much.
Heimerdinger - Listed as Bandle City, so will be Bandle City/Piltover. Nothing new on the Friends/Rivals.
Irelia: Friends: Karma, Rivals: Singed and Syndra, which while obvious were never stated.
Janna: Listed as Independent despite her lore saying she lives in Zuan, but supports Piltover. Friends with Lux for some unknown reason. This means her link with Karma is outright retconned, also makes little sense with her lore stating her support of Piltover.
J4: Nothing new here
Jax: Apparently Ionian now. Minor changes to the splash art. There is a figure in the background that looks similar to the upcoming champion. [Credit to Wincrediboy] Fiora is a rival.
Jayce: Friends with Vi/Ezreal/Caitlyn. Rivals with Viktor. No shockers.
Karma - Friends with Irelia and Lee Sin. Rivals with only Syndra, and not Singed for some reason. Noting a distinct lack of Varus.
Karthus - Friends with Mordekaiser and Thresh, but not Hecarim despite this duo. Hilariously, a rival to Soraka, probobly Wish v Requiem.
Kassadin - Listed as Void, when he is an enemy of it. Should be Independant. Only a rival of Malzahar
Katarina - Rival of Swain, guess she doesn't like Swain in power much. Explains Darius as a Rival to her too.
Kayle - Listed as Demacia, despite being Institute of War/Independant. Her lore outright contradicts this. Freinds with Galio. Rival: Morg.
Kennen: Bandle City, which is new since he left there at a very young age. Will be Bandle/Ionia. [Guess he goes back there to prevent insanity] Nothing new on the Friends/Rivals.
Kah'Zix: Nothing new, except the Kog/Cho friendships.
Kog'Maw:: Friends with Kah'Zix and Cho. [And Malzahar, due to a lore thingy]
LeBlanc - Friends with Swain and Elise. Not Veigar, despite her offering him a place in the Black Rose for his potential.
Lee Sin - Friends with Karma and Udyr.
Leona: Friends with Pantheon.
Lissandra - Trundle is listed as a 'Friend'. Brand, Aniva... and Udyr are chosen as her rivals, instead of Ashe/Sejuani. Yes, that's a mistake, Ashe or Sejuani are far more critical to Lissandra than Udyr. Sejuani is an enemy of Lissandra regardless of knowing her true self.
Lulu - Listed as Bandle City, despite being exiled from it and hasn't had that as her home for hundreds of years. Should be Independant. Friends with Veigar, which makes sense, when both are insane exiles of Bandle City.
Lux: Friends with Garen, Ezreal and Janna. Rivals with Fiora.
Malphite: Freinds with Maokai was known. Skarner was not.
Malzahar: Nothing new, hopefully will be Void/Shurima.
Maokai: Independant is correct, despite him being from the Shadow Isles. Note the inconsistency with other cases like Lulu. Rivals with Zyra. Interestingly no Shadow Isles rivalry.
Master Yi: Nothing new
MF: Nothing new
Morderkaiser: Friends with Hecarim and Karthus, note a lack of Thresh, despite Karthus and Hecarim being his friends.
Morgana: Listed as Noxus, not Independant, she's never been shown allied with Noxus.
Nami: Independant. Rivals with Nautilus, Friends with Fizz.
Nasus: Friends with Sivir?! OK, so I think we know that Sivir's Rework is *soonTM* and she's gonna be linked with Shurima. Rivals with Xerath, Renekton and Cass.
Nautilus: Listed as Bilgewater, not Independant. Rivals with Fizz and Nami
Nidalee: Independant. Freind of Udyr, likely because they are both attuned to nature. Rival of Rengar [He probobly hunts her... or they are rivals in hunting]
Nocturne: Friends - Blank Square [Should be Fiddlesticks], Shaco.
Nunu - Nothing new
Olaf - Volibear is listed as a Friend. This canot just be Winter's Claw stuff, or else Udyr would be there too.
Orianna- Despite being Piltover, is friends with Blitzcrank, from Zuan. Rival of Viktor.
Pantheon - Friends with Leona, no association with Diana.
Poppy - Listed as Bandle City, will be Bandle City/Demacia. Only friends with Galio.
Quinn - Nothing new, interesting lack of Lissandra as a Rival.
Rammus - Listed as Shurima. Seems like the Plauge Jungles are getting 100% retconned, since Nidalee had them removed from her lore. Interestingly a rival of Twitch.
Renekton: Listed as Shurima, despite being from another world and living in Zuan. Freinds with Xerath and Cassio, Rivals with Nasus [But not Sivir]
Funny how Renekton is more social-able than Nasus...
Rengar - Independant. Rival of Kah'Zix and Nidalee.
Riven - Listed as Noxus, although reds explain this is because she is still loyal to Noxus, just not how it is right now. Rivals with Singed, Swain, and interestingly, Varus. Was she involved in the slaughter of Varus' people?
Rumble - Freinds with Tristana, and, interestingly, Ziggs. Rivals with Heimerdinger [Lore] and Teemo [Tristana love Triangle]
Ryze - Independant. Rivals with Brand.
Sejuani - Nothing new, but interestingly not Rivalry with Lissandra despite as far as she knows, Lissandra being allied with Ashe. As far as I can see this is an error.
Shaco - Independant. Freinds with Blank Box [Fiddlesticks?] and Nocturne
Shen - Nothing new
Shyvana - Freinds with Galio
Singed - Friends with Warwick, despite Warwick = Singed mentor getting retconned. Also friends with Viktor. Rivalry with Irelia, Yi and Riven.
Sion - Listed as Zuan. Despite having nothing to do with Zuan. 'Noxian necromancers reanimated the behemoth to serve Noxus once again. '
Freinds with Urgot is new, Katarina makes sense since she recovered his body.
Sivir - Shurima. Freinds with Nasus, Rivals with Cass.
Skarner: Shurima, not Independant.. Freinds with Taric and Malphite.
Sona - Friends with Taric and Xin Zhao for unknown reasons. Especially as she can't speak to them.
Soraka: Rival of Karthus and Warwick
Swain - Rival with Riven personally. Everything else is known.
Syndra - Ionia, probobly should be Independant Rivalry with Irelia and Karma. Freind with Zed. [Reds said they do have similar visions, so this makes sense]
Talon - Nothing new
Taric - Is apparently Demacian now. Freinds with Skarner and Sona.
Teemo - Nothing new here, that wasn't already strongly hinted/outright stated before. [Trist freind, Veigar/Rumble Rivals]
Thresh - Freinds with Mordekaiser, Hecarim and Karthus. Thresh is a friendly fellow.
Tristana - Apparently a two-timeing cheat since she has both Rumble and Teemo listed as friends
Trundle - Ashe and Sejuani listed as Rivals. Lissandra is not listed as a freind, despite the reverse being true. Which means Lissandra legitimately is not just using Trundle...
Tryndamere - Freinds with Gragas. Expect the Rivalry to expand soon!
Twisted Fate - Apparently from Bilgewater now. Gotta wonder how he hasn't been found by Graves yet. Rivals with Graves and Eve.
Twitch - Friends with ZAC. Rivals with Rammus.
Udyr - Listed as Frejlord, but reds say he is Frejord/Ionia. Freinds with Nid, Lee and Sej. Rivals with Lissandra.
Urgot - Listed as Zuan. Should be Noxus first. Noxus/Zuan hopefully. Allies with Sion and... Viktor? 'Professor Stanwick Pididly made him, and he's the arch-enemy of Viktor! Why would Viktor be his ally?!. Enemies are nothing new.
Varus - Only a rival of Riven. No links to Ionia... or other Noxians. [Or a Rivalry with Ashe because both archers :V]
Vayne - Rivals of Warwick and Vladimir. Seeing her job, makes sense.
Veigar - Listed as Bandle City. Should be Independant or Noxus [Due to LeBlanc's offering to be part of the black rose and his exile.] Friends include Lulu But LeBlanc is missing.. Rivals is just Teemo. [Interestingly no Tristana]
Vi - Friend of Caitlyn and Jayce. Not also a Rival of Caitlyn.
Viktor - Friend of Blitzcrank and Urgot [See Urgot for why this is wrong]. Rival of Jayce and Orianna.
Vladimir - Friend of Swain?! Yet still a rival of Darius? Interesting, that means Vlad has probobly done something personally to Darius. Also Rival of Vayne.
Volibear - Ally of Sejuani and Olaf. Rival of Zilean [The great Armored Bear War]
Warwick - Friend of Singed, despite retcon. Soraka and Vayne are rivals.
WuKong - Friend of Yi and Ahri
Xerath - Friend of Renekton and Cassio. Enemy of Nasus. Somewhat shocked Ryze isn't linked to him actually, seeing as both are a type of rouge mage obsessed with power.
Xin Zhao - Listed as Ionia, despite having nothing to do with there. Freind of Garen, Alistar and Sona. None of who are Ionian, by the way.
Yorick - Friends with Hecarim
ZAC - Friends with Twitch. Oddly, despite his mission, not an enemy of Singed.
Zed - Friend of Syndra
Ziggs - Bandle City, Piltover confirmed to be added. Friend of Heimerdinger and Rumble... which is contradictory, but Ziggs does have some screws loose.
Zilean - Piltover, should be Independent. In fact mildly shocked he's not Shinuma seeing the apparent update to that place's lore coming, he'd fit right in. Rival with Volibear. Banner is Chinese Splash Art.
Zyra - Independent. Rival of Maokai.
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Summary:
Major lore update to Shurima coming soon, likely involving the Sivir rework [May be just Visual/Lore, may be partially gameplay seeing as she is certainly not in a good place atm]. It will also involve Cassiopeia, Renekton, Nasus and Xerath. [As well as possibly Rammus and Skarner, seeing as they have been moved to Shurima]
There are some possible mistakes, either that or there will be lore updates for some characters, such as Xin Zhao, and Kayle.
There are some contradictions, such as Urgot being an ally of Viktor.
Riot seems to want everyone to be linked with someone. See: Arhi-Wukong, seems just so Arhi has someone to be linked to.