So one of the clues strongly suggests that Coach's tribe goes to TC again. "One castaway is brought to tears when confronted with his past during an emotional tribal council"
This is most likely Brandon.
So... who's in danger?
Stacey - she is outside of the five person alliance and was clearly friends with the booted Christine, so she's an obvious target. However, I have noticed that she appears to be playing it really cool lately. Hanging out, not causing waves. Smart move for a player on the outs of the major alliance.
Brandon - He's crazy, that much is clear. Or really immature, anyway. Sophie can't stand him and when he confronted Mikayla, everyone was extremely uncomfortable. Clearly one of the two of them has to go to keep the tribe strong. I could easily see Brandon getting the boot. I hope we're that lucky.
Mikalya - However, I think there's a good chance she's our boot. In the confrontation between Brandon and Mikayla, we heard all of Brandon's POV, but nothing from Mikayla. Yes, we saw her crying, but if she were going to triumph over Brandon, I think we'd hear a confessional from her about how she's not going to let Brandon take her out. I think Mikayla is really in trouble. Except for Coach at TC, we've not seen anyone talking about liking her. And I think Coach was more about getting rid of Christina ('you're a temp player') than saving Mikayla. And if Mikayla volunteers for the challenge and then doesn't win it for her tribe, that could really hurt her. Particularly if she's beat by the older Dawn.
We also saw from the previews that Brandon is worried about Albert and Sophie teaming up with Mikayla. I think this is all in Brandon's mind and Coach is not going to let Brandon destroy his alliance. However, to placate Brandon, Coach will support getting rid of Mikayla. Or he'll turn on Brandon and pull Mikayla into the five.
In my mind, Mikayla is most in danger this week, but I am open to other ideas, of course.