In 2022, Disney suggested that a new expansion may hit Disney World's Magic Kingdom but so far, nothing has been reported.
There is growing thought that the expansion could happen behind Big Thunder Mountain Railroad next to the upcoming Tiana ride. It would make sense and recently the former Reedy Creek District apparently changed the land conditions to "Marginally unsuitable" which basically means, there is chance for development.
Some have wondered over the years if this area or any area should expand the most magical place on Earth. Disney may very well start a development project, eventually, but the question is what might that new area look like?
Could a "Frozen" themed area go up behind Frontierland? Maybe Coco or another animated hit like Moana. Honestly, none of that makes sense because what makes Magic Kingdom, magical, is that none of it is a specific area based on a film.
There are film hints everywhere you turn at MK. The Little Mermaid, Winnie the Pooh, Pirates of the Caribbean, Beauty and the Beast, and so on and so on and so on. None of those however, are specific to an area in their own name. No one says, "Hey let's go to Little Mermaid Land."
In recent months there have been discussions about a new themed area from Country Bears Jamboree to Tiana's being rethemed into a New Orleans style bayou area and that sounds kind of interesting but the only way I see a new area completely built around a film working, is if Disney adds a Frozen land like they are doing overseas.
There is a lot of things that Disney can throw back into a remote corner of the park that would be visually stunning and draw guests in but I can't imagine a need for something so small as Coco or Moana. Frankly, it has to be much bigger.