Multiple outlets report that the paid expansion “Bubbly Basin” for Pokémon Pokopia is set to release in August for Nintendo Switch 2. Nintendo Life says a Japanese commercial for the game reportedly confirms the timing of the underwater-themed first part of the expansion pass. It cites a release date of 5 August 2026 and frames the update as an apparent early indication that players will not have to wait long. VICE likewise describes the release date as reportedly leaked ahead of an official announcement, attributing the information to insiders. VICE also states that the DLC will add an underwater town and include new content such as Pokémon, outfits, and furniture. While both sources present the date as a leak or reported confirmation rather than an official release notice, they align on the same expansion name, the Switch 2 focus, and the August release window. Neither source provides additional details about the full expansion pass schedule beyond “Part 1” for Bubbly Basin.