An additional, “core RPG” Pokémon game, entirely separate from the just-announced Pokémon Let’s Go! Pikachu and Eevee games, is also in development.
Details are very thin on the ground – the game is currently untitled – but we know that it will be “in the style of Pokémon X and Y and Sun and Moon”, which we understand to mean traditional catching methods, and without the emphasis on Pokémon Go-style features and cross-functionality.
The games are slated for “the second half of 2019”, according to Junichi Masuda, managing director of the mainline Pokémon RPG developer Game Freak.
Source: Eurogamer Additional, untitled core RPG Pokémon game coming to Switch next year