Hello.
I tried this mod out and it does have a very interesting concept.
However, one very big problem with this mod I see is that everything is so darn fragmented. Maybe that is intended to be changed in the future as the mod grows, but I don't really get that impression. The sheer mish-mash of cultures, religions, and different countries all just pressed together reminds me of someone flicking paint from his brush on a canvas to see the result. The lack of any large countries or established powerbases is sort of disconcerting, and I'm not sure this really lives up to the spirit of the mod. If the premise is that the two 'Empires of Light', then it makes little sense that both Empires have seemingly disintegrated to a 1400's Byzantine Empire-level...
Besides which, there seems to be little natural expansion opportunities. All of the Dacians live in the small country of Dacia. All of the Vlachs live in Tara Romanescu (or whatever the place in Wallachia is called), and there is very little Racial overlap between borders. (Vlachs don't have any special incentive to conquer Dacia because no Vlachs live there, and vice versa). So really, the map is on one hand very fragmented with far too many small nations. On the other, each nation is really its own self contained race, religion, so there is no reason to expand for the purpose of bringing your fellow races/religions under your banner. So I think that it needs a lot of refinement, though the concept is still pretty cool.
I also think it's neat how the Seleucids have endured, though it's pretty hard to imagine that happening given the terrible state they were in when Pompey found them. Maybe one day you'll get around to making up a family tree for them, so instead of Antiochus I, the starting character could be Antiochus the 50th or something, heh.