These things have either been announced, or they've been predicted based on a pattern of previous actions. Either way, they don't exist yet, but will sometime in the future.
“Don't act like it's not going to happen just because it hasn't been announced yet. Haven't you...Anastasia (live-action remake)
“April 18, 1994 – The first Disney Broadway show premieres, based on their adaptation of Beauty...Anastasia (musical)
“Despite immeasurable viewer complaints, 20th Century Fox went and announced a sequel to...Fant4stic 2
“In an age where Disney has to remake all their successful properties, is it any wonder that...Jungle Book: Origins