Put this in the wild guess column -In order to figure out how the show may go, I think you have to think like a producer of the show, and ask, what would get the highest ratings? All barbies in the final four? Umm, no way, IMHO. So bad news is coming, I'm just not sure when.
It also is clear, it seems to me (especially from the order the cast is introduced), that the producers understand that Dave/Charla/Kieth/Tara are the most popular in the real world (despite anything Toni may say!)
Plus we know how Fox loves those twists and turns (Motto: "We're not sure how our shows end either."), so there have got to be some.
There also needs to be some drama at the end for the vote by the evicted schoolchildren, so we can't just have two Barbies against two original/wannabes.
Given all this, here goes -
Tonight- Tom is odd man out, he gets to take out (in a twist!) his rival - Dave.
That leaves AMY/BEAU; SCOTT/HOLLY; TARA/KIETH and CHARLA.
The producers next need to get rid off an original/wannabe, so at the next ceremony, Charla is the odd woman out, but (Twist!) she gets immunity, and they re-do the ceremony, she picks BEAU, and Holly gets left out when the couples are TARA/KIETH; BEAU/CHARLA and SCOTT/AMY, who chooses Amy over Holly. Holly takes Tara with her as her rival.
Last ceremony - KIETH/CHARLA and BEAU/AMY, as Amy chooses Beau over Scott.
Then the jury gets to vote but (Twist!) to make it interesting, the couples have to switch partners, so the vote is for BEAU and CHARLA or KIETH and AMY. Because Toni would take a bullet for Amy only if Desiree did not get in the way first, the vote will go to Kieth and Amy.
And, yes, I have way too much time on my hands.