It didn't make sense for Monica to flip. With her current alliance, she's guaranteed #3 at the very least. If she had flipped, she'd be #4 behind Ciera, Hayden and Tina/Laura M - I would think the returner is back after the next RI challenge. If Hayden came back and somehow got to the end (which I doubt), I think he'd have a great chance at winning due to his performances at tribal council. The jury loved what he was doing, and may be reluctant to give the prize to someone like Ciera because of her flipping.