The camera usage does definitely sound like an IGA thing. But for me the excitement is, "2D game! With co-op! Kinda like the old games! Oh, and there's some camera thingy too but 2D!!!"
Of course, there's still the possibility that this is simply all the elaborate work of a top secret troll network and Konami actually has nothing for E3 besides Revengeance. Which would be incredibly tragic.
Not to mention, if this does turn out to be IGA's game, I'm not exactly hopeful that Konami's going to give him a lot of budget to work with. Because, well, they're Konami.