So now we are down to:
Tom, Ian, Jen and Katie.
I'd have to think that if Katie did not turn on Ian this week then she is going to stay with him all the way. Which makes IanIe the new power couple and leaves Jen as the wild card. So can Tom woo Jen? If tom wins immunity, which I expect he will, then IanIe will galdy join him to vote off Jen. If Tom does not get immumity, then IanIe will lobby Jen to vote off Tom and Tom will lobby Jen to vote of Katie, unless Ian is not as wedded (so to speak) to Katie as she to him in which case Tom with immunity will still get Jen sent packing but Tom without immunity will have Ian vote Kaite along with Tom and Jen waisting a vote on Tom but if Tom can woo Jen and keep Ian then Katie goes home unless Ian is selected by a still bitter Katie and Jen.
Which I think makes it perfectly clear that I don't have a freaking clue where this is going to end up.

Although I would like to point out that I picked Ian for the final two even before the first show aired and as anyone that has followed my survivor posts knows, I'm
always wrong.