Maybe it'll be announced as part of the PlayStation Experience…?
According to Gematsu citing the latest Famitsu issue, Capcom is planning a new PlayStation 4 title that will "turn heads."
Producer Jun Takeuchi described Sony's new console as an "incredible system" and when asked if Capcom is working on any PS4 projects aside from the ones already announced, Takeuchi confirmed as follows:
"Of course. Right now, we're seeing how far we can push the game engine. You'll be surprised by the quality of the games we’re working on right now. I think we'll be able to announce it soon, so please look forward to it. I realize that’s obnoxious (laughs)."
Then he added that it'll "even turn heads overseas," which tells us it's another one of those Japanese-developed games with a distinct Western vibe. They've tried doing this before and it rarely seems to work the way it should…the same thing would probably happen if Western devs kept trying to emulate Japanese designers.
Guess we'll just have to wait and see.