It is doing fabulously for a new IP.
As an interesting anecdote, I saw this guy at my work yesterday with a gamestop bag with a green cart inside. I said, "Hey, did you just buy Gears of War" and he replied, "What's Gears of World?"
Turns out he bought COD WAW, which he called COD5 har har har.
After talking to him he bought it because of a long history he had with cod since the first one on PC. So, yes although it is only anecdote, new IP's have a hard time selling. This sales pattern is a good one.