Uh, iCloud Music Library is part of the Music app, just like it is on iOS. This isn't surprising anyone, or even up for debate.
Devices also still appear in the sidebar of the Music app. For what purpose remains to be seen. Local backups will still be a thing, but syncing is definitely on the chopping block. Local syncing of media from desktop to mobile is about as archaic as any feature still in use across the platform. If local syncing still exists, it will likely be greatly simplified and a lot of logical/automatic syncing features that existed from day one of iPod will be gone.