First of all, Bew and Bozo will die. Bew, because he wasn’t shown in the preview for next week, which may meen his presence got interrupted by either his death or he got looked somewhere? And Bozo because he was shown wounded at the tree + in the Teaser we saw his guts hanging out. ://
I saw Nest with blood on her face in one of the directors stories so I kind of think she got more active in fighting to survive and that’s why her chance to survive had lowered.
As for Lilly and Sonar, I don’t think that the main „masterminds“ of this plan will survive this. Because of they did, their plan would have worked out and I don’t think it’s likely to happen. That would be a too „simple“ way to let things end.
The only option left which I am unsure about is Gel, she’s the biggest bully from the past. She had a very tiring and toxic presence, somehow she turned very weak and anxious and totally unable to defend herself. Maybe she is faking it? I doubt it tho, because she’s whimpering 24/7 and seems geniunely scared.
I think no one will leave this island. I assume it will end with Lyla standing on the island and kinda smiling at the camera and then either a detail shot of something or it’s zooming off to a Panorama Shot the island (or both mixed??) and we will never know if she was there or not or if she was just an illusion after all.