This is not a drill:

The eighth installment of the Harry Potter series, the two-part play, "Harry Potter and the Cursed Child," will be published as a book this summer, author J.K Rowling announced on her Pottermore website Wednesday.

Harry Potter and the Cursed Child will be released on July 31st, which is canonically Harry Potter's birthday. Presumably, it will break all previous sales records for plays.