Harry Potter Miniature Game coming in 2017 from Knight Models... hopefully they have the more today Fantastic Beasts licence as well.
Knight make gorgeous 30mm+ miniatures, including a Star Wars line I never heard about until it was discontinued and a Batman line including Animated Series versions. I haven’t played any of their games though.
Harry Potter never got an RPG because, as I understand it, J.K. Rowling didn’t want other people writing sourcebooks and adventures in her setting for publication. (Apologies if that’s not the case.) Not a problem with a miniatures game, so it’s nice to see something along these lines.