I think they should expand on the leaders and give them more depth. Make them actual characters that live and die during the course of the game. Each civ should have many, many leaders with their own unique strengths and weakness, like crusader kings 2. If they are they not willing to do that just remove leaders completely. It makes no sense to have the same leader for thousands of years. Same with the named governers, the whole thing is cheesy and immersion breaking.