Game of Thrones: George RR Martin hints at more deaths in Season 5

'Game of Thrones' is an adaptation of Martin's series of fantasy novels, 'A Song of Ice and Fire', reported Ace Showbiz. "People are going to die who don't die in the books, so even the book readers will be unhappy. So everybody better be on their toes. David and DB (series co-creators and show runners David Benioff and D B Weiss) are even bloodier than I am," he said on the sidelines of the Writers Guild Awards West Coast ceremony in Los Angeles.

Asked about the future of the show, Martin was unsure how long it would last. "Not really certain yet. This is the fifth season, the sixth season HBO picked up last year. We will have a 7th, 8th or 9th, no one knows. They only renew one or two seasons at a time. After we do season 6, maybe we'll get a renewal for 7th and 8th. That all depends, television is a very changeable medium." 'Game of Thrones' returns with the fifth season on April 12 on HBO.