Yes. And I say this as someone who has been classically trained and absolutely worships the music of Bach (and Mozart for that matter). "The Message" by Grand

Yes. And I say this as someone who has been classically trained and absolutely worships the music of Bach (and Mozart for that matter). "The Message" by Grandmaster Flash, A lot of The Beastie Boys, Some Kendrick Lamar, and many other hip-hop tracks and artists will definitely still be played and enjoyed 50 years in the future. There are people who weren't alive at the beginning of hip-hop who are massive fans of the early artists. They'll be as popular as the greats of early rock, the greats of jazz etc. You have to remember that when Bach, Mozart, Beethoven, Brahms etc were composing there was also a lot of absolute dross being composed at the same time. History forgets the garbage and remembers the greats. The same will happen for all genres of music.