Revolution is more of just a party place with all the flashy lights and stuff. Nothing much changed in the level to represent the theme in most occassions, it was mostly just a room of hats and 7 other rooms of couches and lights.
The nexus will probably be the place we hold all the complete themes from now on, like the western nexus where the whole place was decorated for the long weekend. The revolution will probably just be more for small weekend parties, filled with random or player-made hats.