13,394 NPCs

Classic reference; current Forever availability is unconfirmed.

NPCLevelTitleZone
SkeletonUnknown
Electrified VortexUnknown
TychoUnknown
Jacko BoieUnknown
Rexxie CopperclutchUnknown
BockUnknown
Pretty FlowerUnknown
Zimmix SputtersparkUnknown
Spell EaterUnknown
FrostseekerUnknown
ReuseUnknown
SkeletonUnknown
GemmilUnknown
Venomhide RavasaurUnknown
Kur'gokUnknownInnkeeper
Spread IncenseUnknown
Ettina HumblerangeUnknownInnkeeper
[DNT] Kill Credit: Spread IncenseUnknown
[DNT] Kill Credit: Bundle of HerbsUnknown
[DNT] Kill Credit: Bundle of Dried Cedar TwigsUnknown
[DNT] Kill Credit: Bundle of HerbsUnknown
[DNT] Kill Credit: Sinew ThreadUnknown
[DNT] Kill Credit: Ceremonial Flint and TinderUnknown
Kirin Tor WizardUnknown
Kirin Tor GuardUnknown
[DNT] Kill Credit: Slave Workers rescuedUnknown
CreditUnknown
Arcane ManalingUnknown
Mana PhantomUnknown
DorgaronUnknownExplorers' League
CreditUnknown
HorseUnknownRiverglades
AedamasUnknownRiverglades
CreditUnknown
DeceptionUnknown
Onyxia WhelplingUnknown
Stormwind CrierUnknown
Fallen SkyborneUnknown
Drowned SkyborneUnknown
Argent WayfinderUnknown

Classic reference data from QuestieDB (Forever data, commit c5de61a), with positions on Forever's zone maps. It doesn't confirm that an NPC, location, quest or item is in Forever.