With two more seasons to go, Game of Thrones is gearing towards an end - but HBO bosses are trying to figure out how to extend the lifespan of the franchise.
Although showrunners David Benioff and DB Weiss have remained coy, the premium cable network's CEO Richard Plepler has confirmed that a spin-off looks extremely likely.
"There might be some brand extension," he said. "It certainly has not escaped the producers.
"Right now, we're focused on finishing the series with the kind of energy and excitement that everyone has come to expect.
"We're going to do that, while at the same time parallel-processing very embryonic stages of other possibilities."
It would be a missed trick for HBO not to continue the Thrones property, considering it is one of the most popular shows on TV.
Earlier this year, it confirmed that the remaining 13 episodes were to be split across two seasons, with the next batch - season seven - arriving later than usual in summer 2017. The swansong of cult series The Leftovers will air in its usual place.
Game of Thrones has been nominated in the Golden Globes' Best TV Drama category, alongside fellow HBO big-hitter Westworld.