As a religious publisher, I am aware of the curse that attaches to making the slightest change to Holy Writ.

All publishers know authors who object to the slightest editorial change to their great opus.

Movies exist, audiobook exists, games and quizzes exist; for news their is journalism. Adding videoclips or databases to a book makes a new synthetic or hybrid product, but the video is still video, pics are still pics, and text is text. Chemists make a distinction between a mixture and a compound: I am not convinced that books-plus can go from mixtures to something new.