We're getting the missing genders of the current races for sure, and they've mentioned adding something like a dragonkin race. I'm sure that's not the only idea they have floating around.

The big problem is that since this game isn't like WoW or SW:ToR where you can have as many characters as you want and they only have 1 class each, every character you make is a lot more meaningful. So they need to add some way to change races or something. Maybe once for free every time a new race is implemented, and for a small fee otherwise. $3-5 or something like that.