I have been following this mod for a while, even before i got RTW, it isn't working yet though.
Well, anyways its ten new factions right? If that's the case then I think this should happen: Dumb the Koinen Hellenon(Before getting mad plz read through). So now it is 11 new factions, so here are the ones I would pick:
1.Sparte
2.Rhodos
3.Athenai
4.Pergamon
5.Syracuse
6.Those Greeks on the top of the black sea(srry I forgot), bers(something).
7.Galatia
8.Massilia
9.Kyrene
10.Another German faction
11.Another German/Celtic faction
Just thought that I would say my choise, and you're probably wondering, why Athenai, Rhodos and Sparte, well I actually was thinking of a forced alliance untill all Greek settlements are freed or untill the Greek settlements are in control of "greek" factions.