It's not even worth it for me to speculate because with Joss Whedon and those guys you just never know. Just when you think you know what they're going to do they pull the rug out from underneath you and completely change it.

I could pop up, I might not, but I know whatever it is they have in store is really amazing, so if they did call and ask me back I'd be there in a heart beat. But you never know what they're going to do and that makes the show wonderful to watch.