Actually the Ballroom is not there. 6 extra district cards in Hans im Gluck editions (I have the czech one) are:
- Hospital - Bell Tower - Throne Room - Lighthouse - University - Graveyard
All have their old pictures from the original/Dark City (with University and Graveyard looking a bit weird). Also the Hospital and Graveyard have added text, that they should be used only with Assassin/Warlord in play.
The edition also includes 15 circus action cards from Dark City expansion.