I think Casey said something on the order of, "We can't keep him forever," meaning that at some point the higher ups will want him either hidden away or killed. Now, I don't think they will let that happen, but how they manage to prevent it will be fun to watch.
Count me among the Adam Baldwin fans. I don't think I ever saw My Bodygaurd, but he's Jayne to me.
One character I missed seeing last night was Anna Wu. I thought she was wonderful with Morgan and I hope she'll be back.