Interesting blog about the possibility of a third resort in NA. http://thedisneyblog.com/2012/08/20/why-disney-should-build-its-next-park-in-toronto/
I'm not sure if it would work. I can imagine the extra costs associated with setting it up for winter attendance. If Disney were smart, they would put it next to a ski mountain, that would keep the draw all winter long. It would certainly give new meaning to Disney Skyliner Transportation, or maybe it could be called Disney Skiliner Transportation.