We've discussed this a lot here over the years. The rate of change/innovation in music has been rapid over the past century+, and it seems to be driven as much or more by technological advancement, as by generational musical taste.
But that same rate of change has also slowed dramatically over the past 30 years or so. Once synthesizers, digital recording, and digital playback, all matured, there's been little technological development to drive any further change, and music has sort of settled out over that time.
So I'm not sure what music will sound like 50 years from now, or even 30 years from now, but I think if you'd told me in 1995 that music in 2025 wouldn't sound fundamentally different, I'd have been a little surprised. Because the music from 1965 sounded VERY different than what was being recorded and performed in the mid 90s.