With the current 24 man raids we have groundwork potentially for all the races shown in the FF tactics series as we have already seen Seeq and Bangaa. Moogles are in game already but are more traditional rather than the ivalician models that would probably stand about lalafell size. We could still see Viera, nu mou, and gria

Crystal chronicles had some unique playable races as well

Then we have various races scattered in past FF games from the main numeric line. Ronso, guado, burmecian, dwarf, theres more but I cant remember the actual names atm.

Some of the races I actually would like to see in ffxiv are actually beastmen in ffxi that didn't transition over such as Quadav, Yagudo, and Orc