With Game of Thrones looking to end its series run next year with a six-episode eighth season, HBO has apparently commissioned a fifth Game of Thrones prequel series penned by show writer/co-executive producer Bryan Cogman.
Cogman joins the four previously announced writers who are each working on their own Thrones prequel series: Max Borenstein (Kong: Skull Island), Jane Goldman (Kingsman: The Golden Circle), Brian Helgeland (Legend), and Carly Wray (Mad Men, The Leftovers).
Though it's been known for some time now that HBO had ordered four prequels into development, Entertainment Weekly confirmed what author George R.R. Martin had alluded to as far back as May, giving his blessing to the then-unannounced writer by stating that apart from himself and Thrones experts Elio Garcia and Linda Antonsson:
"I don't know anyone who knows and loves Westeros as well as he does."
Cogman has been with Game of Thrones in a number of capacities since the series' first season, recently serving as a writer and co-executive producer. The episodes Cogman has written include 'Stormborn' (S07E02) and 'The Broken Man' (S06E07, which introduced Bella Ramsey's Lyanna Mormont).
While pretty much all details on the five projects are being kept locked up for now, Martin has made it a point of letting fans know what subjects won't be making the cut. Each series will serve as a prequel and not a spin-off, with none of the current cast from the main series being involved.
Martin also squashed fans' hopes that Ser Duncan the Tall and Aegon the Unlikely (Dunk and Egg) would be the focus of one of the series; and it looks like Robert's Rebellion won't be the focus of any of the five prequels, either.
Game of Thrones's nearly 80-minute long seventh season finale 'The Dragon and The Wolf' (penned by David Benioff and D.B. Weiss) pulled in 12.1 million viewers, up 36% over the Season 6 finale on June 26, 2016.