I’m right there with you.
Kelfin would have been amazing, no hate towards my Vulpera friends.
Sethrak would have made a nice “worgen” AR… they use the same model and it would have added parity with Vulpera if they somehow went Alliance… (Unlikely as heck).
Saberon perhaps? Some came through with the Mag’har. Could see them go either way.
Either one paired with Kelfin AFTER Mechagnomes and Vulpera would have helped balance things a bit I think.
Though honestly if I were Blizzard I’d just revamp the whole AR and Core race system into a new Sub-race system, take the races that are derivations of their parents and have em under that, with their own heritage, racials the whole shebang!
Then add more races AR style that are along the lines of the Vulpera. Not sub-races but unique ones even if they use the same skeletons.