I don't think that they would do a Final Four. At least, I sure hope not. And I think that the rumor can probably be traced back to a misunderstanding of Savage's comment in several of his exit interviews that - (he) always thought of a Final 4 (of himself, Jeremy, Tasha and Joe) rather than of a Final 3. I've seen a reference to Savage's slip-up in several of the posts at SS regarding the possibility of a Final 4. But, I've seen it frequently enough that I thought I should bring it up.
Of course, the fact that there has never before been a merge at F13 is also consistently cited in support of the notion.
But, I just can't imagine that Survivor's producers would create a scenario that contains the possibility that we could have a Sole Survivor who received no more than three votes!
As for Kelley (you Air natives do stick together, don't you!) ...
I'll just plead advanced age and say that I really didn't care for what seemed to me to be a regrettable lack of respect for her father during San Juan del Sur. Or for her obvious glee at the thought of kicking Terry and then Savage - men her father's age - under the bus. So, from my vantage point, Kelley is quite the little brat.
But, even I have to concede that she is a little brat who seems to be playing the Game very well. And, given that, I suppose that I could live with her return. Or, even with her win this Season (in the event that this BootList proves to be, ultimately, a fraud).
And, I'm already completely content with Cambodia, anyway. I've watched Survivor for fifteen years to see something so much fun - and so spontaneously joyful - as Keith, his Tuk Tuk, and his passengers. And I don't think that any other piece of the Game will ever top it ...
And (just for emphasis): I loved your SOTS!
G