BI 20 factions

[Coldfish]

BI said that it will be totaly 20 faction...so...to get things straight...i want to be sure that:

it will be 10 playlable factions

* Western Roman Empire
* Eastern Roman Empire
* Huns
* Goths
* Franks
* Vandals
* Saxons
* Allemanni
* Sassanid Empire
* Sarmatians

7 non-playable factions

* Celts
* Slavs
* Romano-British
* Ostrogoths
* Berbers <-- who are this ppl ?? i never heard of them...please explain
* Western Roman Rebels
* Eastern Roman Rebels

so where the 3 factions go ???....i know the Visigoths are missing...they will be playlable ?...and the rest 2 ?....i would really apreciate it...if u guys tell me