The first part of the Pokémon Poképia Expansion Pass, titled "Bubbly Basin," is set to release on August 5, 2026. An extended overview trailer offers an in-depth look at the upcoming downloadable content, which introduces an underwater town as its primary setting. Players can expect to explore the tranquil environment of Bubbly Basin and encounter new Pokémon inhabiting its depths. The trailer invites players to "take a deep breath and unwind" as they are guided through the serene, aquatic locale. This expansion pass marks a significant addition to Pokémon Poképia, promising new areas and creatures for players to discover.