This will happen sometime after september 2012 cant see it happen before then, I go with Khan points :bbb
Too early for Khan. Late 2012, early 2013 should be a more appropriate date. He needs 2 not 1 fight in WW to settle him. Why rush him against an ATG like Floyd? It's not like Floyd will get old overnight, he is still tip top. This fight would be interesting either way because of the Roach factor and Khan being a good boxer to follow his plan.
Khan would give him plenty of trouble early on but Floyd would figure him out and take a clear ud. Possibly late stoppage.