First off, regarding the F8/9 torch pic. I'm willing to believe it might even have been F10. It looks very similar in positions to the ep6 camp shot (down to the hanging jacket in the background), which would mean not just 1 but 2 torches were out of sight.
However, if Spencer is our boot this week it could still very well be an F8 shot (with similarities to F10 and oddly colored treeparts)

Regardless, the F5 is certainly something to go on. (of course, there is room for unseen torches, but I have to cling to something.)

Leaving the F5 as Tony/Trish/LJ/Jefra/Tasha....the strongest 4 in the group still remaining? If this happens, then Woo is the one that will be this week...?

Strong Aparri 4 makes sense. Woo has always been on the outside of that alliance so it would make sense to get rid of him sooner than later. 2 brawn, 2 beauty. Tasha as the last remaining brain makes sense from so many angles. It's almost an imperative she makes at least F5.

Leaving the targets of Woo, Spencer, Kass and Jeremiah to get through for the next few episodes. Of course, if things do go south for LJ, swap him out for Jeremiah in that F5. *shiver*
Soooo hoping this doesn't happen.