it would be cool to have an inspiration from the movie. Since the original game was inspired by Harry Potter we need a cross over.
Maybe give us a side dungeon fighting a Grin-DeWield an evil mechanical created by Kane (he is a witch doctor). He accidently got into wizard City by the sueage when the pirate from pirate101 killed him. He was revived by the shadowy spirit -OB The Secureal (a ghost). He wants to cause damage to wiz city.
He would drop mounts (hypogriff, thestral, etc). He would drop a pet named wezelly (aka looks like nifller but red).