Nah man, they're putting up random chinese splash arts instead of the regular ones (look at that cho'gath thing, he just got an updated one, why not use it, specially since they're already tampering with things?), almost all champions have reverted back to old splashes (including even Sion ffs), besides Zed clearly having a weird ass ghost zed behind him and Twisted Fate's cards being collorless with the one colored card having weird symbols on it, not to mention what seems to be Azir's name scribbled and scratched out on top of him - coincidentally Azir's page doesn't show his splash at all since all this began, I can't imagine that's just a bug or by now they would have fixed it.
Besides, what could be considered as touchups just don't feeel like 'em: Twisted Fate's removed goatee, multiheadead dicks on caitlyn's (
http://gameinfo.na.leagueoflegends.com/en/game-info/champions/caitlyn/), Nami's bloodshot eyes, Zac's background changing from a lab to a cave, Kayle's blood red wings, the weird color tints on Jayce, Janna and Draven... These aren't touchups, they're not improving any of the skins at all. You could argue that's subjective, but even so, they're such minor alterations that I can't imagine Riot would bother, and that's specially true for Kayle and Janna, who already have a new splash art on the PBE.
These are minor, but noticeable, and the fog thing, which is obviously a teaser and seems to be related to the shadow isles given that it's very similar to the fog on the new harrowing login screen besides the lore stating that the isles are covered in a thick black fog, I'm guessing was meant to draw attention the splashes in the first place so people would pick up on these little things and start questioning whether they're seeing things - given that shaco's ultimate is called hallucinate, I wouldn't be surprised if this is really related. He needs a new lore and the shadow isles feel like they'd be a good fit for him. That tarot thing doesn't seem to be TOO far fetched either, who knows.
(Yes, I realized I thought way too much about this)
Also from a redit comment:
"Another interesting thing is that all of the shrouded champions aside from Zed had some other info on their pages tampered with:
Xerath's W states "... Enemies in the center of the blast take 0 (+0) magic damage...", and he's also missing his Recommended items.
Couldn't find a change in Zed's page.
Cassiopeia's E: "Cassiopeia deals 55/80/105/130/155 (+0) magic damage to her target...", missing Recommended items as well.
Lissandra's Q: "... magic damage and slowing Movement Speed by @Effect3Amount*-100@% for 1.5 seconds..."
LeBlanc missing Recommended items. Nothing else, except maybe Mimic (R) range = ... Self?
Hecarim missing Recommended items."