So, clearly, Hayao Miyazaki is not done. Some of the reviews for “The Boy and the Heron” are calling this his “swan song”, but get that thought out of your head immediately. Studio Ghibli VP Junichi Nishioka is now saying that it’s not the 82-year-old Miyazaki’s final film. The director has already come back to the office with new ideas for another movie.