Well in 2024 it will be 30 years since Tomorrowland had an actual complete renovation....and I would say it is now time... Bring it back to it's mid-century modern outer-space aesthetic...
The bones are there...They need two great new attractions and a lot of land enhancement including an all new entrance to the land... Something over the top and amazing... We don't really need to go Beyond Thunder Mountain if they would just refresh and update the spaces they have first... There is space for 4 attractions in Tomorrowland SGS, MILF, the Speedway, and the old Galaxy Theater. The circus tent area needs to go and be expanded into another headline attraction for Fantasyland ( Neverland and an expanded Peter Pan anyone?)... Which would then open up the Peter Pan building for another new (Tangled) dark ride to match the restrooms across the esplanade... After Tomorrowland is completely viable again and Fantasyland is sorted out, then it is time to talk about Beyond Thunder Mountain... Not while major parts of the park are in decay or unused....