Details regarding Pokemon Home have finally been revealed officially. Pokemon Home will be available from February 2020. It is a cloud service for Nintendo Switch and compatible mobile devices designed as a place where all Pokémon can gather.
By linking the same Nintendo Account to both the Nintendo Switch version and the mobile version of Pokémon HOME, players will be able to access the same Pokémon Boxes on both versions.
You can connect your Pokemon: Let’s Go, Pikachu! and Pokémon: Let’s Go, Eevee! with Nintendo Switch version of Pokemon Home. Also, you can move Pokémon back and forth between Pokémon: Let’s Go, Pikachu! and Pokémon: Let’s Go, Eevee! or into Pokémon Sword and Pokémon Shield.
Once a Pokémon from Pokémon: Let’s Go, Pikachu! or Pokémon: Let’s Go, Eevee! is moved to Pokémon Sword or Pokémon Shield, it cannot be returned to its original game!