Just wanna pop in to say that it's still #1 on Amazon under "video games" in Japan.
Won't be surprised if it falls below MK8 again soon, but considering this, I definitely see this game outselling Skyward Sword in Japan already. Maybe 500k or so. Keeping expectations low, but for a Zelda spin-off this would be good.
If Japan can at least sell it decently, then I can forsee them hitting their 1 million worldwide goal, as the west will probably be interested in the game enough to carry it the rest of the way, and Europe then some (but they're a bit unpredictable). Wind Waker HD barely hit 1 million itself, but Wind Waker HD's problem was Japan. It sold horrible there. That doesn't seem to be the case for this game so far.