Remember, no spoilers for those of us who haven't read the books!...
2 episodes left this season!
I'm totally thinking a Lannister is going to kill another Lannister. Any of them but Cersei might kill Joffery. Any of them might kill Tywin. I think (hope) Tyrion is safe for now. I also think Cersei and especially Jamie are safe for now.
(As an aside, the whole stuff with Theon I'm really not digging this season. I hope there was a point...)