An executive with Disney stated, "We had never greenlit the movie, but it was in development for some time. Things in the queue got ahead of it and we have such a big slate out in front of it, we started to think, ‘Where does it go?' And it's a pretty big investment to make if you are not even sure when you are going to release it."
This comes as a bit of surprise to fans since the last film, "Tron: Legacy", grossed over $400 million worldwide.
Disney, indeed, has a full schedule for the next few years. They have "Jungle Book," another "Pirates of the Caribbean" installment, "Alice in Wonderland, "Pete's Dragon", "Beauty and the Beast", Tim Burton's "Dumbo," as well as other films to be released by Pixar, Lucasfilm and Marvel.