some of these options are quite rediculous to use as hero-classes.
Archmage, Blood Mage > mage
Mountain King, Tauren Chieftan > Warrior
Far Seer > Shaman
Dread Lord, Crypt Lord, Firelord, Pit Lord, Naga Sea Witch, Pandaren Brewmaster, Lich(yeah) > wouldn't fit any race currently in the game.
Keeper of the grove > Druid
Priestess of the Moon > Priest
Beastmaster, Ranger > Hunter
Dark Knight > Death Knight
Lets see, that leaves me with
Blademaster, Shadow Hunter, Demon Hunter, Warden, Dark Ranger, Goblin Tinker/Alchemist.
Goblin Tinker/Alchemist is basically a Engineer or Alchemist, so lets rule those out.
Blademaster, Demon Hunter, Warden, maybe, but i doubt it.
Dark Ranger / Shadow Hunter, nope
Possibly a Blademaster, personally i like the Runemaster (was that what he was called?) more, the rest of these just dont seem to fit.
I know i kinda went offtopic here, since its what wc3 heroes id like to play were talking about, i just wanted to come with a more realistic POV.