An update today that I didn't think I'd be announcing.... but it looks like Kidd, Lucci, Vivi, Wapol, and Eneru are all confirmed playable... they also got some gameplay footage of them on the main page... the P means playable by the way...
http://www.bandaigames.channel.or.jp...character.html
I seriously did NOT see this coming.... also Arlong, Kuro, and Krieg confirmed as assists.