Sam's going to try to help keep people safe and fight ect.
He, Erica, and Jackson will be the only ones of mine to not get infected/die.
TJ is coming back in time to see Doug get infected. And probably die again.
Witt is either going to have to kill Jack or do something with him.
Gen's getting killed by Ethan.
Lis will eventually get infected but she might accidentally shoot an uninfected person first. Bad aim.
Whale'll probably be one of the first to die, at least from mine, simply from trying to help someone else and not knowing how the virus is spread yet.

I don't have specifics for everyone else but they're going to die too. All of them.