Holding off on adding new forums for now. In setting up the original forums, the idea was to keep the number at a minimum with Morrissey, The Smiths and music in general as the main focus.
Books and movies (and TV...) are large influences for Morrissey, and could generate interesting discussion and suggestions, so I think the idea is a good one. But so far, there have not been many threads on the topic so those forums would probably not be very active.
Attached is a screenshot of what adding subforums would look like on the forums index page.