Sorry just had to point this out here.
http://news.dengeki.com/elem/000/000/537/537736/
http://www.famitsu.com/news/201209/22021665.html
http://www.4gamer.net/games/178/G017851/20120923023/
In OST news BBCP has 24 new tracks and 28 new arrangements of old tracks. The arranged tracks are being done by Yuhki from the band Galneryus. Yuhki had previously collaborated with ASW on the GGXBB Live concert event.
Aside from new themes for the 3 new characters, themes for fights between members of Sector Seven and fights between members of the Six Heroes (a la "Existence" from GG for the Assassins) have been added (this is only stated in 4gamer's and Dengeki's reports).
Mori accidentally let slip that BBCP is coming to Arcades in November but corrected himself to say "before the end of 2012" as the date is not supposed to be announced yet.