Does Zwift offer spinning classes/courses in its training world?
Where a sequence of songs with different BPMs is followed by varying cadence and resistance levels?
Perhaps also with advanced exercises, such as riding an entire song, one section standing up, the next in a standing position, followed by a high cadence in the chorus with light resistance, etc.
Could one arrange individual group spinning workouts/rides? Or log into existing bot spinning classes? Or create spinning workouts for different goals like strength, FTP, cardio, etc., independently – either with the familiar blocks or with songs (that have a specific training function – fast songs for cadence, slow songs for standing and strength, etc.)?
Or could one create their own training playlists – perhaps with AI support?
Either in standard Zwift spinning music or in other genres like techno, house, hip-hop, rock, etc., where the BPM and parameters are predefined or can be set manually, possibly with AI support. Similar to how Lego does it with its Open Innovation building sets? 
I can imagine this being very cool, entertaining, and above all, very interesting for many cyclists, clubs, associations, schools, training providers, etc.
Perhaps targeted group marketing could also be implemented through country-specific cycling federations, clubs, etc.