
In addition to the 'XIII' remake, developer Play Magic could work on a remaster to 'Mickey Epic', as they themselves suggest on their own homepage.
You're writing that you're working on an unannounced remaster of a Disney game, although not so many of the recent ones are eligible. Micky Epic would probably have the best chances in this case.
"The company is currently working on the remake of Ubisoft's XIII for Xbox One, PS4, Nintendo Switch FPS, PC and Mac and another unannounced remaster of a Disney's IP."
Play Magic has worked on projects such as Halo, Call of Duty, Crysis, Hunt Showdown, Condemned, Sonic, Rome Total War, Operation Flashpoint, Colin McRae and various VR games in the past, which qualifies her as a developer for a remaster.
Micky Epic appeared in 2012 for PS3 among others. In the Jump'n'Run action adventure, players in the roles of Mickey Mouse and Walt Disney's first cartoon hero, Oswald, the lucky rabbit, experience a brand new adventure. The way back to Wasteland, an imaginative parallel world: Here are the forgotten Disney characters and attractions found a new home.