It's an irony that the once-powerful book publishing companies that lobbied for the "insane" idea of copyright will finally cease to exist soon. They were dinosaurs. Now this weird combination of Amazon (running on a basis of OSS-licensing, which uses copyright against itself), trade-secrets (their software is not available), and DRM (no need for copyright there) supersedes them.
One possible result is fewer industries have a need to maintain copyright (yay), though usually because something much worse and monopolistic replaces it. Now it's just Disney & Friends that want copyright. There's also music studios, though I expect them to go like the book publishers soon.