Warner Bros. Entertainment is getting back into the Hogwarts business. Two years after the last film in the “Harry Potter” franchise was released, the Burbank studio announced on Thursday it was expanding its partnership with author J.K. Rowling with a new film series. The Warner Bros. and Rowling project will be based on the textbook used at Hogwarts, the school for young wizards attended by Harry Potter and his friends: “Fantastic Beasts and Where to Find Them” and the book’s fictitious author, Newt Scamander. Rowling will write the script of what is not a prequel or a sequel to the “Harry Potter” franchise that grossed more than $7 billion at the global box office. “The laws and customs of the hidden magical society will be familiar to anyone who has read the Harry Potter books or seen the films, but Newt’s story will start in New York, seventy years before Harry’s gets underway,” said Rowling in a prepared statement. In addition to the film series, “Fantastic Beasts” will be developed across the studio’s video game, consumer products and digital initiatives businesses, including enhanced links with Pottermore.com, Rowling’s digital online experience built around the Harry Potter stories.