Since the Splash Art seems to be going for a very dynamic look, do you think all champions will get a redone splash art? Because even the recently released 
doesn't necessarily follow the dynamic look these new Splash are going for. And since Rengar got a new splash art and he isn't all that old, will it also go to the champions in 2013/2014?
Quality? Most of the new splash arts look worse than before!
Part of the reason I'd rather play LoL than DotA 2 is the art style of LoL is visually appealing, yet now they're trying to change that!
The reason why splash arts will be updated is because of quality, not to make more dynamic art or anything. As a result new splashes will be produced for champions who don't hit the current bar of quality. I'd say everything before 2013 is up for change.
Rengar was a 2012 champ so he's kinda on the edge of where their art was changing in quality that's why they probably updated him too. Everything from 2012 and earlier I'm sure will definitely have an update though.
