Afaict this has already happened. Vinyl is about the big art, CDs are all about the pack ins. You get small books, pictures, stickers all packed into a cardboard box the size of a novel. Not jewel cases.
At least for the K-pop artists my daughter listens to.
In my experience your average indie CD these days comes in a cardboard sleeve or a digipak, which are slim and more resilient than jewel cases (which love to crack) but idk how to store them neatly, since the sizes vary in at least two dimensions. And they tend not to come with anything outside the disk, you're lucky if you get a booklet.
At least for the K-pop artists my daughter listens to.