Could you look into Kathus , Twitch and Kassadin's ? Many of Karthus's and Twitch's splash arts still have their old models and not the models post Vu And Kassadin's just look horrible (Other then Cosmic ) Edit : Forgot Sion, his NEED updating
Zarkkast1 votesDon't forget the donger. 
GreenLore1 votesI think they never specified any specific order for the splash art updates. So its entirely possible that those that you already mentioned could get their updated splash arts before the ones mentioned in the thread-name
Its not even like they have to do the splashs for one champ at a time,they could mix the order of the splash arts.
Though overall I think Karthus is actually not that much in need for new splash arts. Sure most of his skin splash arts are quite outdated,but his VU didn't change his design very much,so they still resemble his ingame-model rather well. Same goes pretty much for Nidalee.
Angelofchaos16x1 votesI think they never specified any specific order for the splash art updates. So its entirely possible that those that you already mentioned could get their updated splash arts before the ones mentioned in the thread-name
Its not even like they have to do the splashs for one champ at a time,they could mix the order of the splash arts.
They said that they are currently working on Nidalee , Trundle and Tristana, so I assume that they will receive them first. And it was said that the splashes will be updated in the same patch
GreenLore2 votesAh ok,didn't know they already talked about that.
But overall they said that they want to go back to pretty much all the splash arts,so I'm sure that after those 3 the others are sure to follow.
Angelofchaos16x1 votesAh ok,didn't know they already talked about that.
But overall they said that they want to go back to pretty much all the splash arts,so I'm sure that after those 3 the others are sure to follow.
Fingers crossed m8