I'm so excited for this expansion. Actually, excited is a huge understatement.
However, they might want to maybe rethink those talking heads on the Knight Bus. While I'm sure there are guests who will find it entertaining, it's more than very likely going to irritate and grate on the nerves of the Potter nerds. Those talking heads in film 3 are one of the most hated movie add-ins in the fandom. All these years later and if you bring them up at a Potter convention you'll hear a loud groan and many heated yells of, "those stupid, pointless, annoying waste of special effects!" They were never in the books and have no purpose or reason to be on the Knight Bus and since they appeared in the movie have done nothing but annoy the fans.