North America is getting the One Piece: Pirate Warriors DLC today as a $15 bundle on PlayStation Network. The DLC bundle features 10 costumes for Luffy, Nami, Zoro, and other members of the Straw Hat crew.
As previously reported, each costume has an extra scenario based on it.
The DLC for Pirate Warriors is already out in Europe, as four separate DLC packs. You can find details of each one at these links:
DLC Batch #1 (Luffy, Nami, Zoro costumes and scenarios)
DLC Batch #2 (Hancock, Sanji, Robin costumes and scenarios)
DLC Batch #3 (Chopper, Nami, Robin costumes and scenarios)
DLC Batch #4 (Ace costume and scenario)