In a recent interview, Michael Bybee stated:
While he thinks the concept of a Vulpera Paladin for example is really cool, there are a bunch of extra animations and artwork they would need to implement to make it work. They feel super passionately about it every time they talk about it but at this moment they are not actually ready to announce any additional Paladins or other class extensions beyond what we currently have.
I must admit I am disappointed with this statement. Blizzard is not a small indie company, it has the resources and amount of stuff required to prioritize player agency and meet these requests. They should allocate their resources appropriately rather than continue to delay this for an indefinite period. Void elves and Blood elves have the exact same rigs, and so do Night Elves and Nightborne. Why make these large playerbases wait around even longer…?