Taking bets on the next attraction to close it's doors forever at the Magic Kingdom.
My money is on either Tomorrowland Indy Speedway getting a much needed re-imagining or Stitch being put out of it's misery.
I'm not sure folks have included a simple idea - if Disney is at full capacity now, even with all the recently added hotel rooms, why add any new attractions if they cannot generate additional profits?
But since we're simply conjecturing....
Stitch getting rethemed would be my first choice. Wreck-it-Ralph is an excellent idea, for either Stitch or Speedway.
Speedway should become electric vehicles, since gas is from land of yesteryear, not TomorowLand. Then again, I hope gas vehicles become a thing of the past, so keeping antiques might make sense.
Country Bears and Tiki Room are classic animatronics - they are antiques that are not going anywhere. Jungle Cruise is likely in the same boat.
I'm gonna' bet nothing gets done, nor even announced, until at least after AvatarLand opens, and that includes Hollywood Studio makeover.
With Disney World's 50th Anniversary approaching in 6 years - I'd venture a guess that Mr. Iger wants no construction going on around that time and anything major inside MK will take a long time.