The Tempest Maguire series does not have a new book coming out soon. The latest book, Tempest Revealed (Book 3), was published in June 2013.
The first book in the Tempest Maguire series, Tempest Rising, was published in May 2011.
The Tempest Maguire series primarily falls into the Fantasy genre. This young adult series was written for ages 12-17, but can be enjoyed by adults too.