Things we KNOW:
They didn't originally plan to have alt genders for the 2 new races.
Implementing them will require substantial development and implementation. (As would any new "unique" bodies/models)
The last thing we were told, relatively recently, was "we were surprised with the reaction and are monitoring the response. Implementing further genders is a possibility"
This team takes a LONG time to implement fan requests.
Based on all that? .. hold on. At least 2 months for any info at all.