I can think of some.
Mage- time healing spec
Shaman- Tank spec based on earth and volcanoes
Priest - Ranged holy dps spec, with maybe a bow.
Rogue - Ninja/samrui tank spec
Demonhunter - old demo lock ranged fel spec. Maybe with chackrams
Warlock - Fel healing spec with healing demons.
Warrior - weaponmaster spec. Able to equip like 8 weapons. Get stats from one. And abilties use the weapons you have equipped for the animations.
Monk - Ranged fire/jade caster spec, that weaves close combat with ranged magic. Return of jade fire blossom attack. Uses Yu’lon.
Dk- Fire based spec dps/tank
Druid - Class skin based on botanist/arcane druids
Hunter - pet tanking spec, pet shares hp pool with you. Ranged/melee tanking spec mix. LIke rexxar.
Paladin - Sort of want to see a dark naaru tank spec. Like the void class from destiny. Void shields would be nice.