David could be right that this will finish off movie theaters and Slim's is already closed as a music venue. Though Slim's closing was just expedited by the current events not directly cause by it
However I don't think that concerts are going to stay away. It's one thing to dance like nobody is watching and quite another to dance and literally nobody is around to watch as it is just me in my bedroom
Plus if I try to sing along like I was at the show, the reality of my off key, kind of droning along kind of freaks out my housemate instead of getting lost in the crowd. ;-)
For this festival type show, the camera angles are better than anything I could ever experience from being out in front of the stage but it's a poor replacement for being in that crowd that is interacting / singing / dancing along