Our good friend MD Punk from the Anime Games Online Forums has provided a part from the new scan featuring One Piece: Gigant Battle 2: New World! As you can see, it confirms Shiki the Golden Lion as a playable character!
One Piece: Gigant Battle 2: New World (also known as One Piece: Gigant Battle 2: Shin Sekai) is a 4-player action game for the Nintendo DS featuring over 40 playable characters! The game is being developed by Ganbarion, the One Piece: Unlimited Cruise SP team, and will be published by Namco Bandai Games November 17, 2011 in Japan. There is no word on a North American or European release date at this time.