No information for if it's some kind of crossover... thing... or whether it's something wholly new yet? Hmm...
As Banpresto is a subsidiary of Namco these days, it's safe to say this collaboration of big names is between the three of them with Banpresto probably working production or something.
If it were
a crossover, what could it be. Not going to like, I've been curious about a Sonic + Megaman Crossover for a while, but it lends the question of what Namco could add to that.
It's a sequel to Comix Zone, taking place in various video game worlds - with the Sketch Turner analogue being a video game designer - with an utter multitude of levels and areas designed by and reminiscent of work by three compnaies.
Seriously, though, the many, many possibilities that comes with three
big name collaborators as apposed to the usual two is actually what leads me to believe it just might be a completely new production, not some kind of cross.
"My final prayer: O my body, always make me a man who questions!" — Frantz Fanon