King's Quest was always a bit cartoony to me (especially V with all the talking animals), so the move to the full animation style in VII seemed a logical step. And saying in can't look too much like disney or bluth is almost like saying it shouldn't be an animated style at all.
A realistic look would make for a jarring change of tone in the series. You can't get away with some of the things in KQ in an Elder Scrolls like hyper real game. Just TRY to imagine cedric flying in Oblivion (it is not recommended to do this more than three times in one day as it can cause insanity).
It would be interesting though for Telltale to try a new artistic style with this one, but I would much rather have it be somewhat cartoony and have them focus more on making the gameplay more like a Sierra game and less like Lucas Arts. (i.e. the heavy exploration and open world feel Sierra game tended to have)
I finally built a working time machine! It's not perfect yet though, it only moves forward in time and it's a bit slow. You have to be in it for one second for every second you want to go into the future.