The Harry Potter film series ran from 2001 to 2011. The franchise is still going with the Fantastic Beasts movies, with Fantastic Beasts 3 set to arrive on November 12, 2021. J.K. Rowling has not been as active on Twitter as she used to be, which may be tied to fans mocking her sexuality info dumps. However, it's possible she did subtly return to Twitter to honor the annual tradition of using the Battle of Hogwarts anniversary to apologize for killing a character.