Patch is delayed by looking at adding in new features. Thanks to a conversation with DOMAR, I'm considering adding a few new types of luxury/bonus resource and making other types already in the game rarer, to encourage more trade between nations. Also investigating the feasibility of non-aggression pacts, where an AI can propose with another peaceful AI an agreement that neither will be able to attack the other for 15 turns. Weaker civs should be willing to pay for this kind of security, while stronger civs should be able to extort for it. Or, if you don't want troops on your eastern flank, you sign a non-aggression pact with the nearest civ and then you can send your troops to the west and another theater of war.