"Somewhat unrelated but.. is the music industry expecting that we go back to buying CDs (or $0.99 tracks) if streaming services die out?
Because I'm pretty sure I won't. I can't see myself going back to physical media or DRM-laden files any soon."
iTunes dropped DRM between 2007-2009. I don't think anyone is expecting you to go back to "DRM-laden files" anytime soon.
I don't know what the music industry expects to happen in the future, but I'm fairly certain that the best approach for supporting musicians would be for Bandcamp and/or similar sites to grow in popularity. They've got the right approach IMO; high-quality DRM-free digital files, with the majority of revenues going direct to the artist, as well as curated lists (made by Bandcamp and music fans) for discovering new music.
Because I'm pretty sure I won't. I can't see myself going back to physical media or DRM-laden files any soon.