This tweet says it all:
Fire reigns. #HouseoftheDragon has been renewed for Season 2. pic.twitter.com/6CxhzC7SKv
— House of the Dragon (@HouseofDragon) August 26, 2022
Over at The Hollywood Reporter, James Hibberd provides a bit more detail, citing HBO’s report that in the US the show has cleared over 20 million viewers since the premiere, the kind of strong opening they were hoping for.