OP here, apparently I got some more info, there will be new forms of Pokemon (only generation 1) which changes appearance and types to adapt to this new region, apparently, there is a thing called the "island challenge", there will be a Pokemon called yungoos which evolves to gumshoos, I have no info on megas, and the starters and a Pokemon called "rockruff" have some connection, there is a ghost sand castle Pokemon
