https://wccftech.com/splatoon-3-release-date-confirmed-in-latest-trailer/

The release date of Splatoon 3 has been confirmed during the latest trailer showcasing the new gameplay of the game's Turf War mode. Additionally, it's been announced that Splatoon 2's Octo Expansion is going to be free to paying subscribers of the Nintendo Switch Online + Expansion Pack. As such, there's an additional benefit for the service subscribers.

You can watch the latest trailer below: