Some other things of note:
The existing comp. variant of Rooftop is now called "Extra", not "Clean" (the name on the wiki for FD forms) so it's being moved out of the FD stage set
Priah's Keep has "extra" and "moving platform" files, but both of them are just the clean/FD form
Cemetery does not have a "clean" file, so base cemetery is probably staying an FD clone.
The user also posted an image of DoodleBob (show art, not a new game render), not sure what that's for. Could just be for a sandbox page. This user's page for the Timeless Stardial also mentions it to be "The first of two" unique post-launch stages.