Bounties
I would like to see something added to the game that allowed players to place bounties on other players in the game. There could be a separate screen where players could search current bounties or even a option when tapping the person in the world map to add to bounty. The bounty would show under the persons name in the world map and could be collected by killing a certain amount of prestige or capturing a subcity. Also these bounties would grow as more people add to the "pot" on an individual.
This could do several things. First it would give an additional aspect to the game for players who have nothing left to do but search for prestige. It could also enable smaller alliances (or any alliances for that matter) an alternative way to protect there members by placing bounties on threats.
Just an idea from a hooked Haypi player. /cheers