During the Game of Thrones season three premiere, IGN asked Martin if he was developing other shows with HBO under his deal with them. He wasn't willing to share much, mentioning some dramas he was working on with them, but did offer an interesting possibility that's not quite a done deal yet.
Well, I have been writing for a number of years a series of novellas set in the same world, the world of Westeros, but a hundred years earlier, about two characters called Dunk and Egg. And I published three of those novellas, The Hedge Knight, The Sworn Sword, and The Mystery Knight, and I have in mind about nine or ten more novellas about the adventures of Dunk and Egg.
So we have been playing with the idea of doing those as prequels. They would be prequels, in a sense, they’re a hundred years earlier but in the same world. They’re somewhat lighter in tone than the main series, a little more adventurous. But my fans love them and I love the two characters too, and it all ties into Westeros history. So maybe that will be what we’ll do.
As we said, it is not for sure one of the series' they are developing with Martin right now, but exciting they are considering the possibility nonetheless.
The Tales of Dunk and Egg is a series of novellas written by George R. R. Martin, set in the world of his Song of Ice and Fire cycle. Three novellas have appeared so far: The Hedge Knight, The Sworn Sword and The Mystery Knight. The stories relate the adventures of Dunk (eponymously called Ser Duncan the Tall, a legendary member of the Kingsguard before the time of A Song of Ice and Fire) and Egg (the nickname of Aegon V Targaryen, a prince of Westeros, who would later become the king and protector of the realm) beginning with their meeting eighty-nine years before the events of the main cycle and intended to cover a long period. Martin has indicated there will be several more stories, as many as nine, covering much of the life stories of the two protagonists.
Would you be interested in returning to Westeros for a Game of Thrones prequel? Especially considering they would still be based on Martin's work?