One thing Disney+ has started doing is filming making of documentaries along with the films, and releasing them shortly after the film.

For example the making of Frozen 2 doc came out just a week or two after the movie hit streaming. It's basically like Director's commentary turned up to 11. They've done it for a few films.

I'd love to see that happen more, but I suspect making a documentary is a lot more work than editing together a commentary track.