Hmmm, not gonna happen I'm afraid.
Whilst 360 is up currently YoY for the 7th year running 2011>2010>2009>2008>2007>2006>2005 (epic or wot), 2012 should see its decline. This xmas with price cuts for Kinect and 360, with Kinect SW and more advertising, 360 will do a nice dent to Wii sales.
Wii sales are down YoY again this year, and going by the fact Nintendo expect to be in the 11-13 million bracket (compared to 18 mill last year) I see at minimum a 1 mill drop, possibly 2.
2008: 10.2
2009: 9.6
2010: 7.0
2011: currently down YoY 360k with just 3 months.
With both declining 2012 on, they're not going to be miles apart from each other.
I imagin the gap will get down to around 5 mill.