Between Pixar being incredibly lax with the films featured in III, and just the sheer amount of their films KH has yet to adapt, I think all those fears about Turning Red, Luca, Onward, etc. are unfounded. If your name isn't Frozen, Disney couldn't give a shit. Like, just look at what's left to choose from.

And if by some chance they get picked, they'll at least be original plots.