Unlike the earlier games from Cyanide, this is an HBO license, derived from the television series rather than the novels, so the characters will look like their TV incarnations, and in many cases will be voiced by the actors who play them on the show. The action is centered around House Forrester, bannermen to the Starks of Winterfell whose seat in the wolfswood. (Some Forresters are mentioned in the Stannis chapters, when he marches south from the Wall to attack Winterell, but very little is said about them, which made them ideal for game purposes).
The game will be sort of a side story to the show (and books), swirling and around major events. Ty Franck, my longtime assistant who went off to become half of James S.A. Corey and write the Expanse novels, acted as a consultant on story and continuity for Telltale.
The first teaser trailer has just been released. Have a look: