There are 3 books in the Join the Resistance series.
The Join the Resistance series does not have a new book coming out soon. The latest book, Attack on Starkiller Base (Book 3), was published in August 2018.
The first book in the Join the Resistance series, Join the Resistance, was published in March 2017.
The Join the Resistance series primarily falls into the Action Adventure and Space Opera genres. This middle grade series was written for ages 8-12, but can be enjoyed by older readers as well.