Ganbarion is making a sequel to their Jump Ultimate Stars style One Piece game. Jump has a spread on One Piece: Gigant Battle 2 New World, which has over 40 battle characters. Add in support characters and the Nintendo DS game has over 100 characters from One Piece.
This game takes place after Luffy and crew visit the New World. Ganbarion is creating new stages for the game to fit this One Piece story arc.
One Piece: Gigant Battle 2 will be available in Japan this fall. Namco Bandai localized the first title and brought it to Europe just a few days ago.