Very interesting faction preview; it's nice to see the North Africans/Muslim Colonists of NA being given the attention to detail that is their due (all too often they are seen only in the context of the Reconquista).

The glimpse you've given of their unit roster looks very interesting - that said their cultural assimilation map seems very challenging (looks like you will be building your better units from NA the whole time and shipping them everywhere). I don't know how Pirennian you are in your view of the Western Mediterranean in the medieval period, but I'm hoping for some naval bonuses for the faction to counterbalance their likely disadvantages in most of Europe.