If Disney bought Warner Brothers we could see Steven Universe and Adventure TimeUh... Fighting a bunch of characters I don't know is not going to have any value like Dragon Maleficent or Dr. Facilier would... I'd rather fight Heartless.
If we're going down this road of KH being identity-less, I hope Disney buys WB eventually for HP to end up in this. I read the LOTR rights were up recently, too. I'd take either one of those over SW, Marvel, or PIXAR. Avatar or The Wizard of Oz would be alright, I guess. At least The Wizard of Oz is something similar to Disney's animated properties as far as having an innocent, classic, fairy tale quality. It's also like Disney animated films in being something nearly everyone's seen and knows how it goes.