We've already heard that Michel Ancel's Beyond Good & Evil 2 is in development, though it sounds like it might have to wait until the next generation of consoles for release.

Here is an image posted to allgamesbeta described as an in-engine screenshot of the game. It matches enough with the look of that demo footage from a while back that it could well be legit.

Here's that video, which first turned up a few years ago. As you can see, the look and feel of the new screen match with this video.

Beyond Good & Evil 2 in-engine screenshot [Allgamesbeta via VG24/7]