When or Will we see a more complete Cho'Gath update? [Genuine Curiosity Question] :)

I've linked the updated Cho'Gath VFX changes that were put on the PBE today. I absolutely love them but I really really really wish it could've been accompanied by or at least mentioned the possibility of seeing a Cho'Gath model and VO update. It's really great to have brand new and modern VFX on champs that do need them, and Cho definitely needed them so thank you Riot for this :) .

What I would like to know is what made you decide to only add these changes for now? Is there something planned for Cho and other champions of similar status in the future? I'd imagine you are more hard-pressed to dedicate anyone/a team to build a brand-spankin' new Cho VU. Its been really interesting to see Cho as an example of someone getting periodic art changes throughout the past couple seasons (Splash and Model tune up).

Will Cho see any more changes like model or VO replacement? Will he ever? Or are these older features of Cho being preserved purposefully? I'm personally in the camp that is in favor of fully changing/modernizing/VU/VGU/Lore most/all of the old champions because I just think your art/story peeps do an AMAZING job at bringing fresh life to a character (I happen to love the new Swain from an artistic/thematic perspective as an example).

I'd like to get players/Rioter thoughts on this kind of thing and even on other Champions too! Please do lead me to/link me content concerning this kind of thing if I happened to forget or just never found article/posts about. I would love to know more!