Game of Thrones Jon Snow Sequel Series Confirmed by George R.R. Martin Game of Thrones sequel Snow, which centres on Kit Harington's popular character Jon Snow, is indeed in the works at HBO. Author George R.R. Martin confirmed this in his latest blog post, titled “SNOW…and Other Stuff,” and revealed that the actor not only came up with the idea but also brought his own team of “terrific” writers to work on the series from scratch....