The answer to your question is "No".
If you experiment, you will note that different tags are shown in tiles for different media types. I think then, that you have a request of the devs for a specific template of a set of tile tags for audio books.
If you use the existing tiles info for the various types as a guide, and can then specify a small set of tags, and the template you think would work nicely for audiobooks, and then present that as a request, it may, (or may not be) added.
If you don't ask though, it almost certainly won't be
-marko