Sky Sports says it might happen, but Khan is looking at Peterson/Judah atm. Again, they want an easy fight before the unification bout, so this seems unlikely. I will say this though, that there isn't a man more deserving of a payday at 140 than Katsidis. The man has a lot of heart.
Would have been a huge fight a couple of years ago when Khan was fighting at lightweight. Could still be a good fight, but Katsidis has had a lot of battles in his career and at the same time Khan has improved considerably since he's moved up in weight.