There are 2 books in the History of The Lord of the Rings series.
The History of The Lord of the Rings series does not have a new book coming out soon. The latest book, Treason of Isengard (Book 2), was published in December 1989.
The first book in the History of The Lord of the Rings series, The Return of the Shadow, was published in January 1989.
The History of The Lord of the Rings series primarily falls into the Fantasy genre.