It has been confirmed that the Original Screenplay for Fantastic Beasts: The Secrets of Dumbledore (by J.K. Rowling and Steve Kloves) will be published by Little, Brown in the United Kingdom and Scholastic in the United States, as well as in ebook format by Pottermore Publishing.
The publication date for the third screenplay in the Fantastic Beasts series is July 19, more than three months after the global release of the film. There are no more details about the book and if it will be like the previous published screenplays, or if it will contain extra material.