The Street Fighter X Tekken game for the PSVita will include 12 new fighters. From the Street Fighter series we have; Elena, Guy, Cody, Sakura Kasugano, Dudley and Blanka. And from the Tekken series we have; Alisa Bosconovitch, Bryan Fury, Christie Monteiro, Jack, Lars Alexandersson and Lei Wulong.
Capcom has said that this game bound for both the PS3 and the XBOX 360 will be "an all new standalone product that features action packed long-term DLC support," and that way we won't be surprised to see these 12 newcomers through the PlayStation Store and Xbox Live Marketplace over the coming months. Just remember to pre-order the game at GameFly, GameStop or Best Buy.
God Bless and Play Hard Gamers!