The birdie told me last night, that Mayweather was definitely fighting on Sept 12th. As far as an opponent they were still decided, but obviously Khan is the favorite.
He appears to be extremely confident in getting the fight. He claims there have been movement in negotiations and it could be wrapped up in two weeks. Here is what he had to say via Boxing Scene.
“I don’t think I have ever been closer to getting the fight with Floyd Mayweather than I am at this moment,” said Khan. “The indications are that I have strengthened my case with my win over Algieri and I believe there is every chance the fight could be confirmed within the next two weeks.”
He has no leverage, so whatever contract they offer him he will probably take if they indeed put an offer on the table.