The Secret Order series does not have a new book coming out soon. The latest book, Shadow of the War Machine (Book 3), was published in February 2016.
The first book in the Secret Order series, Legacy of the Clockwork Key, was published in March 2013.
The Secret Order series primarily falls into the Steampunk and Fantasy genres. This young adult series was written for ages 12-17, but can be enjoyed by adults too.