FYI they are going to do exactly as he said, all the factions previewed as of now (and the rest of EB1 factions) are all the factions that will be on the first release, the rest will be made into the mod on the other releases (i think 1 or 2 factions). The reason it will take a while is exactly because they care about the fans.... Better actually make a good complete mod than releasing it incomplete with bugs and low content.
Oh come on man, I've seen you post the same thing all over the forums when it is not even true. That said, Rome II is definitely proving to be not all it was worked up to be. Oh well, it wasn't a surprise to many.
The three Roman factions in the original RTW worked quite well in a lot of ways though - it meant they had more manpower than other factions (historically accurate due to their ally system and mass military service), it meant they were aggressively expansionist (again historically accurate) and it meant they actually carried out sea invasions e.g of Africa, which they never do under AI control in e.g Europa Barbarorum or Extended Realism (so again more historically accurate than the mods). There were a whole series of civil wars in the late Republic as well - and again the three factions for Rome represented that pretty well.
Unfortunately Rome II has so many bugs atm it's barely worth playing - and they've messed up Carthage with historically non-existent 'client state' Nova Carthago having some of it's territory (and some that should be neutral / rebel or held by minor factions) and Libya much of the rest. So far no-one's worked out how to mod province ownership to be able to issue provincial edicts, though we've worked out how to mod region ownership (regions in Rome II are what provinces were in Rome, while provinces are a grouping of 3 or 4 regions in which, if you control them all, each building in a region affects the whole province and you can issue provincial edicts to e.g increase tax revenue)
I'm starting to think the problem with Rome 2 at the momment is that it's still being patched and the current mods are still constantly being developed, once the patches stop and the mods start expanding things will get better.
Former Creative Director
Former Head Unit Modeller and Texture
Fourth Age:Total War