Permanent deaths - Cap, Thor, Heimdall, Korg, Loki .... maybe Mantis, some of the Wakandan's
TBD - Wong, WarMachine, Falcon, either Nebula *or* Gamorha (the latter not being a permanent one though)
Not permanent - Spidey and maybe Iron Man.
Untouchable - Strange, BP, Hulk, Scarlet Witch, Black Widow, Ant-Man, White Wolf, most of the Guardians.