Game of Thrones season 8 is all set to pull the curtain back on the epic saga of treachery and ambition in the fantasy land of Westeros. Since the final season will be bigger than ever, considering its dramatic impact, the creators are meticulously planning each and every detail. While there is no news about filming as of now, a website has recently leaked a series of images and claimed them to be of the pre-production stage.

Watchers on The Wall, a devoted GoT website, released multiple images of what looks like the castle of Winterfell. The sets allegedly have been erected near the Titanic Studios, in Belfast, the prime filming turf of GoT.

Since winter has already arrived in the realm, the castle has a snowy exterior along with moat around its walls, suggesting preparations for a looming war. The scene, according to Watchers of the Wall, is different from the normal one viewers have seen in the Winterfell scenes.

And according to the fan website, this may be an indication that the White Walkers have arrived in the Starks stronghold despite Jon Snow's attempt to stop them. In the seventh season, Jon Snow formed a fellowship to challenge the Night's King and defeat him with the handful of men he has along with their weapons carved from Dragon Glass and the fire-spewing dragon children of Daenerys Targaryen.

But his plan failed massively as the king of the dead army killed one of the dragons and forced the humans to flee the war. Later, to everyone's shock, he resurrected Viserion and made him his new flying machine and breached the Wall, that stood tall for thousands of years.

Season 7 ended with the army of the dead marching toward the south after destroying the wall. The eighth season will focus on how Jon Snow and Dany will tackle the supernatural force with a zombified army along with their own personal dilemma.

Jason Momoa, who played Khal Drogo in the series, has recently teased that the final six episodes of the HBO blockbuster will be "unbelievable."

"Just knowing how amazing this season is going to be... It's going to be the greatest thing that's ever aired on TV. It's going to be unbelievable. It's going to f— up a lot of people. And it was a bummer because I'm a huge fan and I didn't want to know what's going on. I was like, 'Damn, I didn't want to know that," he told Entertainment Weekly.