What should be next for Khan, is a quick return to the ring. I'll go with January and maybe get 4 fights in 2013. Between 140 and 147, Khan will surely get a high profile fight.
Peterson, Judah, Garcia, Morales, Alexander, Hatton, and Berto, Paulie, Bradley. And if he stay at 140, Gamboa and Broner will be there next year. And if he can dominate, Mayweather and Pacman at 147. Basically, Khan can still get back to the top. But he's in a win or go home situation.