So I've been playing a while and am really enjoying it. The XML files make it so much more fun
I really like the UN thing but it'd be nice if you could still build it even if diplomatic victory is off. All you'd have to do is not make that one resolution selectable.
The team thing kicks ass. Though whatever you do, don't select one city challenge, put all the AI on the same team, and leave Domination as a victory condition.