I think the main reason it did so well for this past week is that people are being more intelligent with their money.
Black Friday provides good deals for people which means it is a very good time to buy stuff, as such I think there will be a bigger than usual drop going into next week.
Christmas week (whichever week is the largest sales wise) I think will still be smaller than last year by maybe 10% or so overall, it remains to be seen which console that effects the most (though the PS3 will obviously be up from last year) but I don't think the Wii will beat last years figure.
As for what they manage for the (fiscal) year, I think from now until March it should roughly equal last year, being slightly less for Christmas but making up for it in the new year, I think the Wii will still be 3-4million short of the original target, but the new target is an easy goal for sure.
