http://www.youtube.com/watch?v=dS2OiDAr ... r_embedded
Capcom, Namco, and Sega are the companies involved. If I find more information, I'll post it. For now, all we have is this trailer. It's going to take awhile until I hear anymore announcements, but I'll try to keep up with any updates I find.
EDIT: Alright, so I found this website: http://pxz.channel.or.jp/ Not much to it so far other than three petri dishes that have the logos for the three companies, but it's certainly the website for the game If I'm not mistaken.