“It will become like Classical Music. People will still listen to it, but nobody will be interested in new stuff.
All the good rock music has already been made.”
Nailed it.
However, as an interesting note: I have recently heard NEW opera and it was good.
All my digitally recorded rock rock and roll country blues bluegrass big band does not contain more than a handful of songs recorded past 1979.
Musically I live in the past and that’s the way I liked it.