I'm really curious about this mechanic, as it seems to be your analogue to the 'tech tree' system of Civilization and is thus pretty central (The main OTHER things I want to know about are Factions, how they're different, and the AI in the game, which you've touched on but I'm sure will focus on later)
In any case, you said this in the initial kickstarter post:
'Fight or cooperate with the Romans - and become more like them. Barbarian kingdoms become more “Romanized” and gain access to powerful new technologies as they interact with the two halves of the Empire.'
And this in the second update:
‘Romanization’ provides an interesting opportunity to tie progress to how much like the enemy you become
Does this mean that progression HAS to be tied to become more like the Romans? Or is there some other method of progression? How will 'fighting' the Romans or 'cooperating' with them affect how you progress?
I have a few personal suggestions, all based on the idea of 'more variety of large-scale strategy is good'. I think Civ is really great because of how many different ways you can approach winning, but then again At The Gates is a different game and doesn't have to be great for the same reasons, far from it. So I dunno if more like Civ is a good thing, a bad thing, or an it depends thing, I guess. It's your guys' game after all!