If SE is going to add a new Race, it will be most likely a race out of the SE-Universe or something totally new.

The SE Universe has a good amount of different Races, like:

NuMou



Urutan



Helgas



Garif




Gria, Padjal, Cleyran, Magi, Yuke, Espar, Seeq, Shumi, Ronso, Rev and many... many... MANY more Races exist in the SE Universe. There is no point for SE to not take on of their own Races or create an entirely new one.

Whatevery SE will do tho, i would go with Viera, Ronso or something equally designed.