In a recent blog post, George R. R. Martin gave a massive update about the "Game of Thrones" universe. Not only did he express excitement at early cuts of "Game of Thrones" prequel, "House of the Dragon," but he also revealed the showrunners and titles for the other prequels and his progress on "The Winds of Winter," the sixth novel of the "A Song of Ice and Fire" series on which "Game of Thrones" was adapted.