The Llarn Cycle series does not have a new book coming out soon. The latest book, Thief of Llarn (Book 2), was published in January 1966.
The first book in the Llarn Cycle series, Warrior of Llarn, was published in January 1964.
The Llarn Cycle series primarily falls into the Action Adventure, Fantasy Romance, Heroic Fantasy / Sword & Sorcery, Science Fiction Romance and Space Opera genres.