just thinking that it would be pretty interesting and add realism if, during war, there were refugees coming from the frontier worlds (especially the lower-class and less-developed ones) into the core and higher-class/development parts of the empire. could potentially lower approval rating in the destination worlds as the new strain on resources takes its toll and just have an overall social impact.
i dont know, this might already be the fact in the game, but i havent really noticed it if so.
what do u think