Would there be any interest in a kind of "extended workprint" feature where you can watch the films with deleted scenes (in their rough forms) re-insterted? It would accomplished once again through seamless branching and would only be a kind of special feature, not one of the actual "versions".

I think it might be an interesting alternative to just including deleted scenes as a bonus feature, since most people watch deleted scenes to wonder what it would be like if they were kept in the film.