I really do want digital albums, complete with very high resolution art, full lyrics, liner notes, and extras.
I'd actually like to have the ability to buy the "full album" that would include video files of each music video from the album, "B" sides from old 45 releases of songs from the album, backstage videos, interviews with the artist, whatever.
The old album covers from the 70's, the ones that were supposed to be on large vinyl record jackets... I want to be able to put those up on a large flatscreen TV while the album is playing. Preferably not just a scan from a CD printing, but the original image scanned in high resolution. I'd like to be able to see all the details in Hipgnosis images like the jacket art to The Lamb Lies Down on Broadway or Wish You Were Here. (Hmm, someone made an animated GIF for that last one... heck, I'd like it both ways in the digital album, original and new animated version.)
Of course, I want this all using open file formats (FLAC, JPEG, HTML). But since nobody else got around to doing this, Apple is doing it first, and of course with Apple it will be proprietary, opaque, and likely patented somehow for maximum lockin.
I don't think this will revolutionize music, but it really is something I want.