There are a few things announced first of is xblaze and action game prequel that is supposed to be released sometime this winter. Other than what I have just told you and the trailer there is nothing else none about it. http://www.youtube.com/watch?v=CVORG9nEB7c
Toshimichi Mori the producer of BlazBlue that wanted to do an anime is now talking about a rpg. For example he is thinking about persona. Personal I hope they stick to fighting those who read this blog knows why. (I WANT GUILTY GEAR.) Just incase you forgot.http://www.crunchyroll.com/anime-news/2012/03/25-1/arc-system-works-producer-talks-about-blazblue-rpg-possibilities