As far as I'm aware, Stonewardens are only Dwarven when you're dwarven. Likewise, Priests of leaves are only elven when you are. I'd say that unique dwarven/elven models for those, are more required. Technically, it would be nice to have race-specific models for all the priests, but that would be rather excessive work. How often does someone really play AV Ljosalfar?