I just saw the latest fantastic beasts movie, and I get the same vibes from the world that I got while playing knights of the old republic and thought this was a great universe to live in. It's a fun universe to watch on the big screen, but it needs more legs to expand outward. I have read that Rowling does not want to give up any control, so this is not likely to happen, but if she ever did, I think we'd get more interesting expansions.