Earlier today, Namco Bandai opened up an official website for the secret game that involves Sega, Capcom, and Namco Bandai themselves which was revealed not to long ago as Project X Zone. A game that takes elements from Namco X Capcom, and Endless Frontier. Not too much is available on the website, but as of right now only the “Entry Title” section contains voice samples of the big three’s characters have been revealed.
They also revealed a bit more of what the game will have in store for us. They show off more content and references, an example would be a Dead Rising location that will make an appearance. There also seems to be a Resonance of Fate location, a JRPG published by SEGA and developed by tri-Ace, which was released back in early 2010 available on Xbox 360, and PS3.
Sources: GoNintendo (http://www NULL.gonintendo NULL.com/?mode=viewstory&id=175742) & Andraisang (http://andriasang NULL.com/con0ov/project_x_zone_site/)