In my opinion the fact that the Wii now has competition in demographics it had to itself in previous years pretty much changes everything and makes using older numbers almost useless.
For the Wii to have some kind of November/December miracle really comes down to 2 things, a price cut or relying on the strength of a few key new games. Almost all of their old evergreen titles have either reached the saturation point or face stiff competition that nullifies their impact.
Two of those new titles, Goldeneye and Kirby's Epic Yarn, have already failed to have the kind of impact needed so the burden is getting heavier for Donkey Kong Country Returns and Disney's Epic Mickey to be massive hits or for New Super Mari Bros, Wii to see some kind of massive resurgence in sales.
I personally think the Wii will see a massive drop in sales in both November and December compared to last year.
