The new wildseed is blessed with with Elune and Ardenweald which is nice. For night elves since they lead in druidism, and teach the other races. Perhaps with this they will accept death magics more and probably druidism in general learn more of death as part of life and incorporate more death magics in there kit. They obviously accepted there undead breathren back into the alliance.
Perhaps they may learn new magics with the blessing of death, on horde bwonsamdi is a death loa associated with helping life too, so I find that interesting, lore opening the way for undead druids for example.
That explanation at least makes more types of undead that can tolerate holy magic as a lore justification to add them, while giving players options to play the zealot that nobly takes the holy damage. But opening the forsaken to all sorts of necromancy from different types of magics can do that, and open rp for different types of backstories.
Personally would love to see drust magic in the forsaken, probably as risen thornspeakers in the 4th war. And some variations of drust forms.