I’d be cool with lightforged undead. It’d be something completely new for the alliance side and it’s a popular model overall. I’d be down with Ankoan as well. Unless mechagnomes get more customization that really distinguishes them (take a look at king mechagon for example) I don’t really wanna see them though if they’re added that’s fine too I just won’t touch em.
I’d be fine with something like this:
Alliance: Ankoan, Lightforged undead
Horde: Vulpera, X. I don’t play horde so can’t really speak about what they should get, probably ogres or something along those lines.