List of albums that will still be popular 50 years from now...

I'll bet on:

Chuck Berry as the moving force in delivering a "race music" soundtrack for the counterculture of the 1960s and Elvis and The Beatles (very possibly Brian Wilson, too) as the moving forces in co-opting that back for mainstream Western culture and commerce.

The social context of rock n roll is important and my guess is that the r n r music that survives the longest will be that which played a pivotal cultural role, per the above.

Some of the Brill Building music (Carol King Tapestry, etc) may survive, too - but that's a different (not r n r) kettle of fish, IMO.

Sevs,

I understand your concern with a perceived Trump connection, but this cultural debate precedes the press-elect by a good 60 years.   In my opinion, there is no thoughtful consideration of rock n roll's historical context that does not include race.  I've been posting about that issue here for more than a decade.  Since this thread is speculation about the place of our contemporary music in the future, it kinda begs consideration of the past.