[Suggestion] Lair spawn out of player's ZOC
To give the feeling of a living and feral world, I suggest to implement a lair spawn outside ZOC (with a minimum distance to other lair and of strengh related to season and distance from players border) like barbarian in CiV, in fog of war areas.
This will give more PvE to the players who like the rpg part of the game and more uncertainty about what you can find in a not controlled zone.