all of the yellowjackets are going to die.
i've had different versions of this theory bouncing around in my head since mid s1, and if you've seen final destination, you can just skip the rest of the post because you probably already know where i'm going with this.
natalie's death scene was overall unsatisfying in my opinion, but that's not because i don't think that the show was leading up to it eventually. her character arc was rushed and cut off too abruptly, but after sitting with the episode for a bit, i do think that natalie was always going to be the first of the survivors we saw die.
"we both know that's not true. this is exactly where we belong. we've been here for years."
now it's notable that natalie is appearing as she did the night of the party in the pilot. the last night before the plane crash. not just her outfit, but her hair and make up are the same. see how much of her roots are grown out, vs how much they're grown out in the 96 timeline.
when that plane went down 600 miles off course, no one was supposed to survive. not a single person on that plane should have made it out. The Wilderness, the lonely, violent, misunderstood Wilderness kept them alive when they crashed into It. when they found cabin guy's plane back in s1, lottie looked at the vines growing around the wheels and said "It didn't want him to leave", and she was right. laura lee's trip ending in spontaneous combustion should have been enough to prove that if only they were paying attention by then.
they all should have died when that plane crashed. The Wilderness allowed them to survive, to make a home. albeit violently, tragically, It nurtured them through two winters, and ungratefully, they all left anyway. eventually they're all going to have to go home to It, one way or another, dead or alive. It's already been inside them for years.