Originally Posted by
Rozz
As long as the Night Elves don't show open hostility, I don't see some not returning.
But knowing how Night Elves are, I understand why they would just stay in Undercity since the Forsaken is becoming a faction for all undead (spurned or not) rather than sycophantic zombies. If Calia's purpose is to provide a healing element for their collective trauma, that is definitely the place Delaryn would feel most at "home". She went through an unbearable amount of suffering and was convinced to betray her allies in a rage. Now she has nothing but anger, regret, etc. It's totally understandable why NEs like her would see a place w/ Calia and Voss' mentality as a safe place to stay until they're ready.
Additionally, NEs are judgemental as hell. It's a society of purist virtue-signaling that only recently ate humble pie. Seeing Tyrande's reaction to them does give a bit of hope and now their new tree is going to be a mix of life/death magic. Maybe there will be a welcome place for them. They are victims too, just fortunate enough to get resurrected by Sylvanas and not go to the maw.