Well, as far as Rob's tribe goes (don't remember the name), I'd put my money on next TC being a flushing out of Kristina's idol with Secret Agent Man going, then Kristina herself...barring some miracle. But who knows, miracles happen.
Again, did anyone else notice the logs/timbers/beams they all used for making shelter? The ends were sawed flat...did anyone notice that they were given saws? We were shown the large box of nails, hammers, hatchets, etc. (which I think is the wussification of Survivor). Did they saw the ends flat themselves, or might they have been left there for them? Shelter building seemed mighty convenient this time.