This honestly makes me so jealous. These classes keep getting tons of cool features while I think the other classes are kind of left in the dust.
Warlock demon variants
Mage pet varients
Shaman ghost wolf and elemental varient
Dk pet varient especially with SL change
Paladin mounts (I mean kinda not complaining about this cause the legion varient are amazing)
Priest shadow form
(more customizations for other classes would be amazing too but I can’t think of any necessary for warriors, rogues, Dhs, monks)