Love it with a few changes!
I love the idea of having a vice-leader! 1-2 super trusted people who have every ability of the leader-- just they shouldn't be able to kick each other or the leader out
Co-leaders should stay about the same(change of name tho), but i agree on putting a limit on the number of co's -- maybe the leader chooses how many co's?
Elder- basically what you said!
Member- can't do anything! same as it is now.
Member(new)- right now they keep their little 'new' tag for 3 days, and while they have that tag they shouldn't be able to view traps, teslas, war bases etc. this will stop war spies, since wars last a max of 2 days, a week seems a little long.