Honestly, I feel like they need to work on the actual face-sculpts, as well. The male viera are a dozen steps above the other races in terms of how well-sculpted their faces look in comparison.
It's even jarring compared to female viera, which are also a step above other races. I'd love for them to set aside some dev resources to re-sculpt all the face options (obviously don't change their actual appearances!).

Otherwise if they don't re-sculpt the faces, imagine them adding fresh facial options to the older races, with the quality of male viera. It would look... really odd.