Rogue One: A Star Wars Story (novelization)

Rogue One: A Star Wars Story is the upcoming novelization of the film. It is slated for release by Ballantine Books in both hardcover and eBook formats on January 3, 2017.

Publisher's summary
The official novelization of the upcoming film Rogue One: A Star Wars Story, starring a band of rebels on a daring mission to steal the Death Star plans.