Guillermo Rigondeaux is fighting or the interim Bantamweight title. Don't get to see many Cuban greats go pro, so that's interesting.
Aside from that, not much. Couple of well-protected prospects - Mike Jones and Brandon Rios - have a couple of fights that won't tell us much.
The Rigondeaux-Cordoba fight could be better than the Manny-Margarito fight. I think it's a massive risk for the Cuban. He was a class amateur (two time Olympic winner), but Cordoba is useful, much taller, and obviously has far more pro fights. But did lose to Bernard Dunne, so... If Rigondeaux wins it'll be pretty amazing though. It's only his seventh pro fight.