The Prophecy of Days series does not have a new book coming out soon. The latest book, The Serpent's Coil (Book 2), was published in July 2011.
The first book in the Prophecy of Days series, The Daykeeper's Grimoire, was published in May 2010.
The Prophecy of Days series primarily falls into the Speculative Fiction genre. This young adult series was written for ages 12-17, but can be enjoyed by adults too.