Kimi-tachi wa Dō Ikiru ka or "How Do You Live?" is going to be Miyazaki's final film, actually he retired in the mid 2010s but his passion is making movies so it ended being a hiatus more than anything, one of the reasons (if not the main one) is that Miyazaki is aware of his mortality and he wanted to left a gift for his grandson
according to Toshio Suzuki
“Miyazaki is making the new film for his grandson. It’s his way of saying ‘Grandpa is moving on to the next world, but he’s leaving behind this film.'”
