Jim comes back
I think Jim may be resurrected eventually and story walks to Ethan to tell him about the lake of tears. In episode 1 Tabitha tells Ethan that Norman can’t be dead because monsters aren’t real so they can’t have killed him. When/if they eventually figure things out and destroy the man in yellow and the monsters, Jim will never have died. There does seem to be some time wobbly wobbly shi going on. Like a predestination kind of thing, a closed loop. So if they do manage to defeat it all they essentially prevent the death of Jim and others. Jim going back to direct Ethan would be part of the effort to defeat the monsters. A pretty weak theory I know but Jim really did seem to be alive when he appeared to Ethan, he had a scratch on his forehead which makes me thing it was the real Jim not just an apparition or figment of Ethan’s imagination.