There are 4 books in the Heir to the Darkmage series.
The Heir to the Darkmage series does not have a new book coming out soon. The latest book, Rise of the Shadowcouncil (Book 4), was published in December 2022.
The first book in the Heir to the Darkmage series, Heir to the Darkmage, was published in April 2021.
The Heir to the Darkmage series primarily falls into the Heroic Fantasy / Sword & Sorcery genre. This young adult series was written for ages 12-17, but can be enjoyed by adults too.