If the Wii wouldn't sell one single unit for a whole year and the PS3 would continue its sales for this time, the PS3 would be head to head with the Wii.
In Japan, according to media create, the PS3 is around 9500 units a week, the wii is at 41000 units. (4:1)
in europe the PS3 is around 70k, the wii is at 180.000 (2.5:1)
In the US the PS3 is around 60k units, the Wii around 170k. Didn't use last week because of shortages for both products. (almost 3:1)
Worldwide last week: PS3 126k, Wii 320k around 2.7:1
Even the 360 outsold the PS3 last month. With ToV releasing in Japan and a likely pricedrop in the US, things are not looking to change for August.
Right now, the PS3 is in last place. I think it will catch up to the 360 but the Wii is out of reach. Playstation will not win this generation.
Imagine not having GamePass on your console...