I think an easy and fun way to add new content would be to add two new Artificial Intelligence teams to the Multiplayer world. I don't know that too much balancing would be required since the elo would just automatically balance them out. Speaking naively here. The Acquisitions Incorporated Team seems pretty self explanatory though perhaps throw a few nasty cards in there to make it tougher. What would you suggest the makeup of a computer team for Castle Mitternacht would look like?