The source is the same dude thats leaked the characters in Super and both versions of Marvel.
Its looking good for Juri if this holds any value.
Translation:
Lupinko, well known for leaking the list of Super Street Fighter IV and give some characters in Marvel vs. Capcom 3 says those are all the characters from Street Fighter x Tekken.
We can ensure that it is good at what he does but has not always been the point.
STREET FIGHTER
Ryu / Ken Masters
Chun Li / Cammy White
Guile / Abel
Dhalsim / Sagat
Hugo Andor / Poison
Cody / Guy
Sodom / Rolento
Ibuki / Makoto
Zangief / Rainbow Mika
Kasugano Sakura / Karin Kanzuki
Mayor Bison / Juri Han
Secret Character: Evil Ryu and Akuma.
TEKKEN
Kazuya Mishima / Nina Williams
King / Craig Marduk
Julia Chang / Bob
Hwoarang / Steve Fox
Yoshimitsu / Raven
Jin Kazama / Ling Xiaoyu
Bryan Fury / Jack
Lars Alexandersson / Alisa Boskonovitch
Paul Phoenix / Law (not sure which of the two if Forrest and Marshall)
Asuka Kazama / Emilie de Rochefort
Heihachi Mishima / Kuma
Secret Character: Devil Kazuya and Devil Jin
In addition to exclusive to each console, which said nothing. How about this list?