"Sons of Anarchy" is revving up for its final season but the outlaw motorcycle club will live on in books as series creator Kurt Sutter revealed the cover art to "Sons of Anarchy: Bratva" Sunday at Comic-Con, according to The Associated Press.

The first of a series about the "Sons" world, "Bratva" is set in the show's fourth season, the AP reported. It follows Jax (Charlie Hunnam), Opie (Ryan Hurst) and Chibs, played by Tommy Flanagan.

Hunnam was not at the panel session but pre-taped a video message for the audience, according to the AP.

Sutter also revisited the topic of a possible prequel to the series and said serious "talks are ongoing," according to the AP. "I don't know if it will be a full-on series or a mini-series," he said.

Sutter said he is sure about one thing: "there'll be no spinoffs" because he believes those only work for procedurals, the AP reported.

Fans also got to see footage from the season 7 premiere, which airs Sept. 9 at 10 p.m. EDT on FX, according to the AP.

Cast members from HBO's "Game of Thrones" were also at Friday's Comic-Con panel but remained tight-lipped on any spoilers, the AP reported.

Fans were told they would not get any plot details about the upcoming fifth season but a blooper reel and a video introducing nine actors that have been added to the series were shown to the audience, according to the AP.

"Game of Thrones" leads the pack of Emmy nominations with 19, including best drama series, and is based on the best-selling book series by George R.R. Martin, the AP reported.

Among the new faces are relatives of the late Oberyn Martell, also known as the Red Viper, played by Pedro Pascal, the AP reported. Alexander Siddig is Doran Martell, the lord of Dorne and older brother to Oberyn.

Toby Sebastian has been cast as Prince Doran's son, Trystane Martell, the heir to Dorne, according to the AP.

Jessica Henwick will play Nymeria Sand, Rosabell Laurenti Sellers is Tyene Sand, and Keisha Castle-Hughes is Obara Sand, the AP reported.