BTW - the civil war in your (MAA) AAR added greatly to the story. But it took a lot of modding and console-commanding to represent that.
Would be nice if the game itself allowed for eventual break up of a great empire. Im sure that would be a feature that would payed its worth even if something else (like one playable faction, maybe) would have to be sacrificed to that.
But whatever you do, you will have my support regardless!