Cylar - Nope, he's too good of a villain.
Nathan - I hope so, it took them half a season to finish him off.
Peter - No, He'll probably quit.
Claire - Has never really been smart, so not surprised that she's falling for Carnival Guy's (Samuel) act.
Bennet - has always for the most part just been following Claire around, trying to keep her out of trouble, but hey he's made a career out if it.
Angela - What grace? She's always been a manipulative sneek.
Hiro - I thought he was on the verge of Death several episodes back, with every time hop destined to be the one that kills him, yet he seems to be making a remarkable recovery and gaining a true mastery of his powers, with no treatment what so ever. He must be on Obamas new health plan.
The stories have never been as good as the first season. Don't get me wrong, its still a good show, but they have enver seemed to really get that hook back that they had the first season.