Yes, the OP is not 100% accurately up to date...
Originally, the planned first release of the patch will immediately contain JPAN's Engine because of the probability of the Engine not being compatible with the patch, and only has 923 Pokémon slots available; but due to the previous bug about evolution, Epsilon "reset" the making of the patch using a vanilla ROM but is now compatible to be patched with JPAN's Engine, and has 1020 Pokémon slots... Aside from those changes, there is now a tentative list of form/es to be included which includes every ME and PR available and, if not all, almost all significant form/es are included without using too much slots, thanks to FBI's method...
As far as I remember, those are the things that are not yet mentioned in the OP...