Bandai Namco, Shueisha and Toei Animation have confirmed full details of One Piece Day '26, an annual celebration of the manga series, with a livestream planned for fans worldwide. The in-person event, held at Chiba City's Makuhari Messe convention centre, is expected to include franchise updates and possible reveals about the series' many spin-off projects, building on last year's announcements of a One Piece Heroines anime and a Netflix live-action season two preview.

The free livestream will run across two sessions on the official One Piece YouTube channel, on 21 and 22 August, and will feature a One Piece Card Game announcement, a voice-cast talk session on the ELBAPH arc, live musical performances, and the final results of the second Global ONE PIECE Character Popularity Poll. Fans can also take part in an interactive prediction campaign via the ONE PIECE BASE app, while broader anticipation centres on updates for Toei's ongoing anime, WIT Studio's remake series, the Grand Gourmet management game and further card game expansions.