https://wccftech.com/pokemon-brilliant-diamond-shining-pearl-legends-arceus-release-dates-confirmed/

The release dates for Pokémon Brilliant Diamond & Shining Pearl and Pokémon Legends: Arceus have been confirmed today.

The remakes of the Nintendo DS entries in the series set in the Sinnoh region will be released on Nintendo Switch on November 19th worldwide. November is traditionally the month for major Pokémon releases, so this release date is not surprising at all.