One of the common point of criticism among Endless Space reviews, and something I also agree with personally, is that the game lacks personality or flavor.

Overall, the different factions feel more each like just a bunch of positive/negative modifiers, not like an actual distinct civilization.



I believe that adding a bit of voice acting specific for each faction, with voice responses when you move fleets around and such, would be nice. While this is more common in RTSs than in TBSs, I don't think it would feel out of place - and it would help give each faction and race a bit more of flavor and personalty. Some of them would probably not even be "voices" per se, just appropriate sounds.