Moros posted this on the TWC forums.
Quote Originally Posted by Moros View Post
Qataban would be cool if we had a bigger focus on Arabia. However the amount of provinces in the Area, doesn't allow for a decent representation in game, and would probably mean that one of them would live very very short. However I'm planning for scripts alike to the celtiberian alliance to complicate and more accurately represent the political situation of the area back then.

But yeah Saba' is going to have a couple of extra units. With 4 units portraying the professional army. Of which 3 new ones the Khms, the Mqdmt (not 100% sure yet if they make it) and the Tmhrt. The fourth are the m'qbt malīkīm, also known as the Royal guard, which represent the bodyguard unit.

I don't think I can give you guys anymore information.
So it seems Qataban and Hadrumaut are unlikley to be in, on the plus side we've got the names of 2 (possibly 3) new Sabean units.