Game of Thrones
Melisandre and Jon Snow in Game of Thrones HBO

One of the most popular theories around Jon Snow's rumoured resurrection in Game of Thrones season 6 is the Red Priestess Melisandre and her ability to bring people back from the dead. While it is almost much confirmed that Jon will feature in the upcoming season – thanks to leaked on-set images and the GoT season 6's first official look that featured only Jon Snow.

However, it is still a mystery whether Melisandre would have a part to play in his return. Well, HBO's yearender clip has added some weight to this theory as it features the scene where Melisandre is seen telling Jon, "There's power in you, do you feel it?" This surely suggests that there is some reason behind folks at the network choosing this particular scene for their video.

Actress Carice van Houten (who plays Melisandre), hinted in an interview with The New Daily earlier in 2015 that something "spectacular" will happen on the show when it returns next year.

"You've seen her clock Jon Snow, which is a great ending because you think, 'Uh oh, what's going to happen there'?" Van Houten said of her character's appearance in the season 5 finale. "You feel that she is concentrating more and more towards Jon Snow... there are slight hints that something's going to happen," she teased.

Meanwhile, spoilers on the upcoming episode hint that Jon would be free from his duties as the Lord Commander and a brother of the Night's Watch, post his resurrection.

Warning: Potential spoilers ahead, proceed at your own risk

"According to Night's Watch oath, after death, a Night's Watch brother is free. Jon Snow is rumoured to head towards Winterfell to defeat Ramsay Bolton, where it is also speculated that he will be meeting Sansa Stark," according to Movie News Guide.

A report by The Christian Post also stated that the sadistic villain, Ramsay Bolton, will be killed in season 6. "It was revealed that there is upcoming battle that will have fans saying goodbye to some characters. One of the distinct characters of the series, Ramsay, was seen hanging on crosses, along with two bodies," the report said.