Now, it has a release date for season 2, two and a half years after that. After a lot of early promotion for the season, Netflix has announced that One Piece Season 2: Into the Grand... Netflix's live-action ONE PIECE is returning for Season 2, ONE PIECE: Into the Grand Line, in 2026. Here's everything to know, including the release date, major casting news, letters from Eiichiro Oda, and more. Netflix reportedly plans to announce the official release date for One Piece Season 2 during TUDUM on Friday, May 31. Dig in to know the cast, plot, release date and everything you need to know. What is the One Piece Season 2 Release Date? One Piece Season 2 will premiere on Netflix on March 10, 2026, a little over two and a half years since Season 1 arrived in August 2023.