If Angulo beats Canelo, that's a good fight for September. Khan likely won't be an option until 2015. Garcia is a good option as well.
if khan doesn't reextend his contract. it might as well be angulo esp if he goes over by beating canelo. makes sense for sept.
Angulo won't be considered even if he beats Alvarez. Mayweather is most likely going for Khan if Khan decides to fight in the ring and pause his twitter adventures.