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.
The Nintendo Switch version of the cloud platform supports connectivity with Pokemon Sword and Pokemon Shield. Once the games are linked, you can deposit or retrieve Pokémon that can be obtained using those games.
Source: Pokemon Home
