The reason I'm excited is looting is the same concept I mentioned in the leaders thread. I think most people feel combat is already rather easy. I've seen several opinions stating combat bonuses like the Honor barbarian boost can reduce fun in the game since it makes combat even easier. By shifting away from in-combat benefits and emphasizing victory rewards:
- Increases the challenge of fighting barbarians
- Balances it with a better reward
The looting idea is the best one I've seen in months for the honor opener, so it's at least worth a try.
- Realism: It represents scavenged swords, arrows, cannon, armored vehicles, and so on. There's been looting on most of history's battlefields.
- Gameplay: Helps steamroll early opponents by speeding up production from successful victories.
My concern about a flat per-city bonus in the Tradition tree is the risk of making Tradition good for wide empires too. Human players can pick and choose from both trees while AI's are blocked from doing so (and probably couldn't choose intelligently even if we unblocked it).