The Angels Unlimited series does not have a new book coming out soon. The latest book, Calling the Shots (Book 4), was published in June 2003.
The first book in the Angels Unlimited series, Flying High: Mission: Prepare to Party!, was published in December 2002.
The Angels Unlimited series primarily falls into the Fantasy genre. This middle grade series was written for ages 8-12, but can be enjoyed by older readers as well.