Netflix has confirmed that Part 4 of *Pokémon Horizons* Season 3, "Rising Hope," will premiere on 18 September 2026, marking the finale of the current season. The instalment picks up directly after Part 3, in which Roy stepped into a leadership role and the Rising Volt Tacklers prepared to confront the Explorers, the Strong Spheres and the mysterious Laquium, pushing the story further away from the Ash Ketchum era and towards a storyline that feels distinctly its own.

Part 4 opens with the episode "Mochi Mayhem!" before building towards a conflict involving the "Six Heroes" and a climactic battle against Laquium, with a new teaser showing Roy and the team attempting to rescue the Six Heroes from Explorer captivity. According to Netflix's official synopsis, Liko, Roy, Dot and Ult will call on allies made throughout their journey and lean heavily on Terastallization and Mega Evolution to boost their Pokémon's strength. The season 4 release comes as Japan's TV Tokyo has already moved on to a new arc, "Wonder Voyage," which began airing on 22 May 2026.