The Wii might be able to do so, if there's enough supply present (I'm thinking something like 200k Japan, 500k America, 300k Europe would be most likely to happen. If Smash Brothers were still being released in December, the odds would have been a bit better. We should have a more definite picture when Nintendo releases their financials (due very soon now).
The 360 does not have any realistic shot of reaching 1 million in weekly sales. The console simply doesn't have enough of a presence in Japan and Europe to pull it off. It's also important to bear in mind that the 360 is essentially already seeing boosted sales at the moment; 125k weekly sales in America is not "normal" numbers for the console. Multiplying the current sales by a factor of 5 or 6 presents a distorted view. (It would be as if taking Wii numbers the week Mario Galaxy is released and then adding a holiday multiplier to them. That's not going to give you an accurate prediction.) Ditto for the PS3, which usually sells around 75k worldwide on a weekly basis; the 120k for this past week is due to the new price cut in Europe.
That's not to say these consoles won't sell well this year (they will), but they aren't cracking a million units in a single week.
End of 2008 totals: Wii 42m, 360 24m, PS3 18.5m (made Jan. 4, 2008)
