spies / espionage
 

Wonder if it would be interesting to include a minigame like some sort of infiltration, or some mechanic, or unit that could be used as a scout, etc.

To help you find online player cities / armies - just show you the region they are in and maybe with higher skill / success - it would tell you a range of army strength like 100-200, and with higher skill it could narrow the range...

it would help allow people to find pvp matches and kind of be an interesting game mechanic...

We are planing to add a full Player list that shows all player online with all their armies, town strength e.t.c But I guess your idea is even better - we can have several upgrades player needs to purchase to fully unlock player list.

Yeah, I would prefer to have to do some work to find out details about other players, would be kind of cool, just depends on whats possible to implement on your end