Khan did well vs Maidana, but Khan has deteriorated since then whereas Maidana improves every fight. That would not be a pretty fight for a Khan fan. I'd like to see Maidana rematch Alexander, their first fight was Maidana's 1st at 147 and he didn't adjust well to the extra weight at all, but now I think he is comfortable at 147.
The fight GBP are probably looking at is Thurman vs Maidana with the winner taking a shot at Mayweather.
Khan is nearly a non-entity in America, he has little fan base, little interest, and he hasn't even fought since April! Does he think having a year out will prepare him well vs Mayweather? He's even more deluded than we feared if that was the case. Maidana on the other hand fights regularly, fights top fighters regularly, has a much better profile in America, and there aren't many times an American crowd has chanted a foreigner's name when he was facing an American(although it was probably because that American was Broner...).
As for Broner, he has shown he is not the new Mayweather. Not an elite fighter in the ring, nor does he have the same level of dedication as Mayweather outside of the ring. Plus It feels like Broner is genuinely hated; the fans don't like him, fighters don't have any respect for him, even the Showtime team looked genuinely happy he lost like Broner was a problem for their network, and even his own trainer looked less than happy with Broner's antics before and during the fight.
I actually felt alittle sorry for him with his quick exit from the arena. He looked like someone who had forgotten who he was, like he had lost sight of why he got into the sport in the first place. He had been completely humiliated by Maidana in the ring, and the crowd let it be known what they thought of him. It was the kind of experience that is either going to make or break him.