(Apple doesn’t sell music with DRM anymore. There is only “iTunes+” music. Limiting the service to legacy music with DRM wouldn’t make any sense whatsoever. I’m not saying that the labels wouldn’t demand it, I’m, however, doubtful that anyone would ever agree to that. It would obviously doom Apple’s cloud locker right from the start.)
Nowhere did I say it'd be limited to DRM, I said it would be limited to music purchased from the iTunes store.
Even though today's iTunes music doesn't contain DRM it is still fingerprinted and Apple (and iTunes) know exactly whether a song in your library came from the store or whether it was one you ripped yourself.
I'm pretty sure only the former will appear magically in your cloudstore without an upload, and I suspect the latter will never be welcome.
