In the newest DLC, players will be able to use from SF: Blanka, Cody, Dudley, Elena (in her first game since Street Fighter 3), Guy, and Sakura. Players will be able to use on the Tekken Side: Alisa Bosconovitch, Bryan Fury, Christie Monteiro, Jack-X, Lars Alexandersson, Lei Wulong.
The DLC will be available for 19.99 on PSN, and 1600 MS points. However, if you buy the Vita version of SFxT, you will receive two download codes. The first code will get you all of the DLC characters, and is transferable to the game on the PS3. The second code will give you all of the core characters free alternate costumes.
If you read my review of SFxT, you would know I loved this game. And this DLC sounds interesting, if only to prolong playing it longer. Be sure to be on the lookout at the end of the month.