In this list, I describe who would be worth putting into the game. (I think)
Lilo and Stitch: Experiment625 / Reuben, Experiment 221 / Sparky, Lilo, Captian Gantu.
Brother Bear: Kenai and Koda, Rutt and Tuke
The Lion King:
Mufasa, The Hyenas, Zira, young Kovu, young Kiara, Nuka
Aladdin:
Abu and Iago
Snow white: Dopey, Grumpy, Sneezy, Snow white
Hercules: Phil
Up:Dug, Russell, Carl, Kevin
Well imo if add Gantu add hamsterville and the Grand ConcilWoman. XD
I wish for ali baba from 3rd movie
Ali baba is huge character in arabian nights “novel aladin based on” and its acceptable to tweak and big in arabian culture
I pretty much like all your wish list 
The Lion King:
Adult Kovu, Adult Kiara
That would break the timeline since Simba and Nala are kids…
Well, again, we have something like young Tron and old Kevin Flynn together…