I would like quests that bring about or unlock/release TiTans, I feel that this is a way to bring some real chaos/fun/danger/excitement to the mid-late game.
We could have anything from demons that go from faction to faction trying to recruit someone capable of helping them clear an ancient portal/ritual spot of theirs that's being held captive by some sorry do-gooders/guardian's', if you accept then you recieve a +1? to diplomacy with Titans faction & a -1 to all others. If you accept or decline then the demons go to the next faction until the've recruited as many factions into there quest as they can, the faction that completes the quest recieves a special item of some sort and an additional +2? to diplomacy with Titans faction
to all factions would receive a message from a neighboring continents emissary sent by their TiTan ruler offering you the chance to show your fealty by sending him 50% of your current coin holdings or be marked as an enemy when he comes with his army (will spawn along one of the 4 sides the map, factions that show fealty have a +2? to diplomacy with Titans faction), the more factions that send him money the stronger his army is accourding to the amount sent