Something totally new would be: Deity's.
Now before you say something, yes this was your guys idea at some point anyway
But it's one that always stuck with me as something that would make the game a ton more fun.
I think the basic idea was:
Some players dont play normal accounts anymore but only 1 Deity account. Deity's get their power by worshippers ( all normal narmir accounts) each narmir account has an option to pick 1 Deity to worship ( and can change it ofcourse) by building a specific building and taking turns they send 'power' over to their Deity. The Deity can use this power to interact with the normal narmir kingdoms and possibly with other Deity's.
Resulting in another dimension to the narmir world and the war in there. Plus I think it might be fun for some players who dont have that much time to spend on narmir to play a couple of chars and take turns daily etc, but who can still have fun and wreak some havoc as a god, or ofcourse help out their worshippers.