Yes, the latest set of festivities will award you the chance to dress up like a werewolf to terrify onlookers and irritate the heck out of any Lupin who are now being mocked by your getup. There are also housing decorations for those who prefer to fill their houses with pumpkins rather than dressing up in a costume; the game allows for either. The event starts on October 19th and runs through November 1st, so you can be dressing up with a tail and humming “Werewolves of London” before the week is out.
Source: Official Site