Have the plot details been revealed for the ‘Game of Thrones’ prequel?

It's sounding very familiar...

The potential plot details for Game of Thrones prequel The Long Night have been rumoured – and it’ll sound pretty familiar to fans of the epic fantasy show.

According to online rumblings, The Long Night could follow the story of Azor Ahoi, who is otherwise known as The Prince That Was Promised. As Game of Thrones fans will know, this is the prophecy that has proved a consistent reference throughout the show thanks to constant mentions from the likes of Melissandre.

The prophecy states that Azor Ahai was a fabled hero who fought with a burning sword called the Lightbarer, which was used chosen to battle against darkened forces in the world.

But it is ultimately revealed the weapon came at a cost and Azor Ahai had to sacrifice his lover Nissa Nissa in order to create the powerful sword.

In Game of Thrones, it’s often claimed that the Prince will return and Jon Snow could be the very manifestation of him.

Although the plot details haven’t been officially confirmed, it seems that Poldark star Josh Whitehouse could be the man to portray him after he was has been cast as the first male lead alongside the previously announced Naomi Watts.

It comes after George RR Martin confirmed that the show will definitely be a prequel.

‘This one really puts the PRE in prequel, since it is set not ninety years before Game of Thrones (like Dunk & Egg), or a few hundred years, but rather ten thousand years (well, assuming the oral histories of the First Men are accurate, but there are maesters at the Citadel who insist it has only been half that long)”, Martin claimed earlier this year.

“We’re very early in the process, of course, with the pilot order just in, so we don’t have a director yet, or a cast, or a location, or even a title.”

The show is expected to air in 2020.