The Megamorphs series does not have a new book coming out soon. The latest book, Back to Before (Book 4), was published in May 2000.
The first book in the Megamorphs series, The Andalite's Gift, was published in July 1997.
The Megamorphs series primarily falls into the General Fiction genre. This middle grade series was written for ages 8-12, but can be enjoyed by older readers as well.