A new trailer for Splatoon 3 has revealed that the game will release in Summer 2022, and will feature a new version of Salmon Run.
Splatoon 3 Expansion Pass Receives New Trailer, Wave 1 Launching Spring 2023 – NintendoSoup
Splatoon 3 Salmon Run Next Wave Co-op Revealed - Siliconera
Salmon Run Confirmed to Return in Splatoon 3
Splatoon 3 brings back Salmon Run this summer
Splatoon 3 launching summer 2022, Salmon Run revealed