Hi, I'm Daniel Clan leader of The Kings #8RVJCOOP I have some good ideas, but will stick to the best ones.
Promotions : Everyone wants to be promoted, and frankly if the clan gets old enough it will be nearly all elders. So I think there should be some promotions from elder to other positions just for fun. So they are not co-leaders just elders with a better name. say Sargent, Lieutenant, General, Rook and or Knight. This would keep alot of younger players happy.
Also a Lock button for the main screen. just a little extra button above the settings button to prevent you from moving walls and buildings accidentally, as this happens way to frequently.