Originally Posted by
Teriz
Except Monks and Demon Hunters came after Warriors, Paladins, Enh Shaman, Feral Druids, DKs, and Rogues. There's only so many ways to skin a cat, so despite DHs and Monks having unique mechanics, them being melee was bound to give people a case of dejavu.
Necromancers and Dark Rangers would compound this issue because they're already in the class lineup. We already have a class that uses Necromancy and controls the dead, and we already have a class that fires magical arrows and is an undead and/or petless archer. Neither concept adds anything new to the class lineup.
Also don't underestimate the power of a theme. You have a Goblin riding inside a warframe using similar base mechanics to a Druid class, but giving them abilities like Buster Canon, Magnetic Armor, Self-Destruct or Turbocharged, and it will feel like an entirely new gameplay experience.