Eh, I'm siding that Ash will stick around the anime. He's named after Satoshi- still getting executive director credits- and Pikachu is still available in Paldea. Maybe they're trying a Pokemon Chronicles 2.0 chunk, but it doesn't feel all too likely to me. Also, if they're moving the anime away from the main games to focus on Pokemon Go, then I want a personal apology from everyone in the world who claimed the last couple of generations had to be rushed to meet the deadlines and coincide with the anime episodes.