If his next appearance was in the Native American episode, I kind of wish he -had- died. He still could have shown up in Parallels after all. Would have made the episode much meatier as well, and I don't think TPTB could have credibly never referred to what happened again.
Seriously, I don't know what the writers were doing with him...I despised him when he was a regular who not infrequently saved the ship, but when he became an occasional guest character I started to like him (The Game was probably my favorite Wes episode)...and then between this episode and the Native American episode they managed to make me loathe him all over again, though for entirely different reasons.