Can't really think of any new genres this Wednesday. Maybe this should be the last of New Genre Wednesdays. Here's the first (last Wednesday).
No, not fanfic. Fan-fic. Fiction about science fiction fans, fiction told from the perspective of those steeped in science fiction. It doesn't really matter if fan-fic is set in our universe or another universe. If science fiction is a way of reading, these protagonists read their world in a way which makes it into science fiction.