As the preview suggested, Christina is pretty much doomed next week. However, it also suggested that someone could be leaving the game due to an injury, so who really knows...my guess is that it's not a game-ending injury or else they'd have kept it a surprise.
The way I see it, that women's alliance of five still has the game gripped by the balls.
Next week - Christina goes home after Manono inevitably loses
Week after - Merge at 12
The Salani tribe votes as block of 8 (including Alicia). They get out Colton/Jonas/Leif/Tarzan until it's down to the Final 8. The men from Salani (Mike, Jay and Troyzan) will go along with this because:
1) Mike/Jay were already on the outs of the male power struggle.
2) None of them really trust Colton.
3) They see the new Salani tribe as sticking together to the end, unaware that the women are just using them so that they can get to the Final 5 together.
Mike/Jay/Troyzan will all go home one-by-one and you're left with your final five of all women. Kim will pocket the game's only remaining idol and never need to use it. Colton will play his out of desperation (to no effect) or will go home with it in his pocket right at the merge.
Kim/Chelsea seem to have the most viewers thinking that they're the winners of this game and they obviously have the closest bond around (as evidenced by tonight's idol sharing). My feeling is that they'll gun for likable Sabrina and also Alicia since Alicia had time to bond with the earlier jurors from Manono. Useless Kat is pretty much a lock for the finals, regardless (and also a lock for zero jury votes). Kim or Chelsea win the million bucks, probably with everything coming down to how they perform in front of the jury.
And I'm sure we'll see Colton, Alicia and Sabrina the next time an All Stars installment rears its head (probably in a year).