They have actually already remade a lot of their older Movies. Pete's Dragon immediately comes to mind as it is about to be release in theaters. However, some of the other movies they have remade include The Parent Trap, That Darn Cat, The Absent Minded Professor and the Shaggy Dog.

Personally, I would not mind seeing a remake of the Computer Wore Tennis shoes, at the very least I think it might make a good Disney Channel Movie.