Capcom is having a HUGE SDCC this year, with announcements of new characters to Marvel vs. Capcom 3, however they saved the best for last!
Capcom & Namco have teamed up to bring us Street Fighter X Tekken (note: it is not vs.). The game is styled after Street Fighter IV (and Super Street Fighter IV), and during a gameplay demo, Ryu, Chun-Li, Nina Williams & Kazuya Mishima were shown in game.
After, the team from Namco stepped up and said that they are working on separate cross over, Tekken X Street Fighter, which, presumably, would put Street Fighter in Tekken’s world.
When asked when the release for each would be, ‘not for a while’ was the answer.