Actually, I almost feel like the drastic shift from the usual, or at least the impression this trailer gives that it's far from a typical COD game, does entice me enough to actually consider it.
There was a very poignant video I can't find right now about the level design/gameplay mechanics from COD4 to MW3 that talked about how you're always rushing into a never ending sea of respawning enemies and how little skill, and no tactics, it took to be good at the games. Basically the point was that CoD games are now at the forefront of the casual market, and I would agree. They're not even competing with CS or other FPSs, but with the Wii bowling and Maddens (dare I call Madden a casual game? oh I dare).
So if they do take an entirely different approach this time around I'm definitely interested, but at the very least I'll wait until it comes out and see actual people playing it to consider the full price (wait, forgot CoD games never go down in price...ever...)