lets see necromancer many stuff can we base a spec on lets see
https://wowwiki.fandom.com/wiki/Voodoo
https://wow.gamepedia.com/Professor_Putricide huh neat already dont look like a lock and dk
if lore supports it you can use this as spec https://wow.gamepedia.com/Vampire the lore around it kinda need more exploring anyways
or blood magic with healing
unholy spell caster sure + need more lore exploring here
ofc if the expansion is shadowland that meens exploring death magic more but voodo is kinda death magic already so witch doctor works perfect to necromancer
then again befor Ner'zhul becoms the lich king he keep taping into shadow, death/spirit magic i am not sure
but i see plenty of stuff you can base necromancer on in the ingame lore aswell
#1 Hype-Thread Shitposter - Overlord of the Hypethread
"Death Knights are practitioners of necromancy (also called the dark arts or the black arts) the study and use of magic to raise and control the dead. Necromantic magic (or death magic) has many functions beyond simply raising the dead. Masters of this tainted field of magic can conjure festering diseases, harness the shadows into bolts of incendiary energy, and chill the living with the power of death. Death Knights are also able to reconstruct the flesh of undead creatures, allowing them to function again even after the foul monsters have been destroyed. Death Knights are the enemies of life itself, and all hands are raised against them. Some of the worst evils in Azeroth's history have been perpetrated by the dark arts, and they deserve their malevolent reputation. Few things are as abhorrent and horrifying as the dark arts."
I replaced a few lines. You see how the Necromancer description basically describes Death Knights? If not you're willingly ignoring the blatant resemblances in the Necromancer description and how they are represented in WoW (as the Death Knight class).
MAGA - Make Alliance Great Again
Death class, be it Necromancer or Dark Ranger, would incorporate all the blue/green smokey shit that Bwonsamdi farts out in order to visually distinguish it from DK.
It's still fire nuking. Destro harness fel and fire energies to deal chaos and fire damage. Ele harnesses the elements of nature to deal fire, frost, and nature/lightning damage. Fire mages harness the arcane energies of fire to deal fire damage. Necromancers harness the power of death and decay to deal shadow/death damage. See how they are all thematically different?
You can't have it both ways. You can't generalize Necromancers as just Warlocks/Death Knights, but not other specs. They both use frost magic at the core, but it stems from different places, and they use it in different ways.
Necromancers were once mages, that went against Dalaran and practiced Necromancy. They are masters of frost, shadow, poison, and death magics. You can sure as hell differentiate them and it doesn't even take much imagination.
Definitely was fun to play. Always liked the feel of it, but the theme not that much.
I do believe the alternative for the theme could have been a Holy-based Monk like the ones you see in Scarlet Monastery. Wasn't Disc Priest designed with a Monk archetype in mind during Vanilla alpha or something?