The idea of having some kind of groups or collective artists has been on the table for a while: Question for the community: wanted features for DJ groups / combined artists?
Another reason this is relevant right now is the idea of Shows in addition to events. So we’d like to have a list of (more or less) regular shows that are either numbered ( 90s Night #293 ) or managed some other organized way ( Tuulipukukoodi S04E04 ), and to have a dedicated page with timetables and proper promotion landing pages for each show. This would also allow easier event creation that would autogenerate the next event for you based on the show template image and metadata, auto-increment the next show number etc.
So yes, this is very much under consideration right now. We just need to figure out the most common use scenarios and how to best implement the initial step 
All ideas and feature requests regarding this is very much welcome! It helps when designing the features.