I think it'll land somewhere around 50-60 million, PS4 around 90-100 million. I don't think selling 50-60 million is grim. Unless of course your only definition of "not grim" is winning...and I assure you most people at MS don't give a crap as long as they're making money (especially if they could make more money "losing" than "winning" (say, for example, if they took major loses in hardware to get to that win).
I know we get a bit preoccupied with our "side" winning here, but I don't think these numbers aren't that bad. Sure, they'd love them to be higher, and I'm certain they'd love to outsell the 360. But I don't think this is a sign that the brand is dead, or anything. We're not in Wii U territory (sorry Wii U
)