Paizo announced that while they're republishing books under the ORC license, they're making some minor changes to the material in the core books. Some OGL-only creatures, spells, and items will not be returning in the new books. Also some material is getting moved to another book.
https://paizo.com/community/blog/v57...master-Project
My interest is in just how much of a headache will this be for FG users.