'Game of Thrones' Season 8 Spoilers: Two Unlikely Friends Reunite to Fight the White Walkers

The final six episodes of Game of Thrones won't arrive until 2019, but filming is already underway on the last few installments of HBO's fantasy epic. While the cast and showrunners have kept a whole lot under wraps so far, we're starting to see small trickles of information about what the end of the story will look like. Based on recent reporting from noted GoT authorities Watchers on the Wall and Los Siete Reinos, we'll be seeing two old friends reunite on the battlefield in Season 8. And we've got some predictions about the broader ramifications of that reunion.

Spoilers and predictions for Game of Thrones Season 8 ahead! If you want to go into the final six episodes completely fresh, turn back now!

WoW and LSR report the fourth episode of Season 8 will see Jaime Lannister and Brienne of Tarth fighting White Walkers side-by-side in a snowy environment. They won't be going it alone; they'll be surrounded by other (yet unnamed) soldiers as they lead the charge against the undead.

According to WoW, the scenes with Brienne and Jaime "were filmed at the Magheramorne green screen set [in Northern Ireland], with a mantle of snow, so it could be anywhere where it snows, which at this point is anywhere the story is likely to focus on. If I were to venture an educated guess, in episodes three and four I would place these characters somewhere in the North."

This isn't the first we've seen these characters together since they parted ways back in Season 4. The final episode of Season 7, "The Dragon and the Wolf," saw Jaime and Brienne in a tense exchange at the Dragonpit in Kings Landing. "It's been good to see you," Jaime says icily over his shoulder, "I imagine the next time will be across a battlefield."

Brienne isn't having it. "F*** loyalty," she says, pulling him around to face her. "This goes beyond houses and honor and oaths. Talk to the Queen." You can watch the video of their exchange below.

Later in that same episode, Jaime finally turns his back on Cersei, presumably heading north to aid Jon and Daenerys in their battle against the White Walkers. So, it's not altogether shocking that Jaime and Brienne meet again, since they're now fighting on the same side. But the new set leaks do provide a pretty substantial clue about what's in store for Season 8, though uncovering that clue involves a bit of a lore dive.

Back in the first episode of Season 4, "Two Swords," Tywin Lannister melts down Ned Stark's enormous Valyrian steel greatsword, Ice, and forges it into two swords, Oathkeeper and Widow's Wail. Jaime gives the first sword to Brienne, along with some pretty boss armor, in Season 4 episode 4, "Oathkeeper." He tells her, "It was forged from Ned Stark's sword. You'll use it to defend Ned Stark's daughter."

Jaime takes up Joffrey's old Valyrian sword, Widow's Wail, some time later. We know this from the scene in Season 7, episode 3, "The Queen's Justice," when Jaime and Olenna talk after the Lannisters take Highgarden. Yes, the dialogue between them gives Olenna one last chance to score some sick burns on Joffrey, but it also makes a point of reminding the audience that Jamie has his firstborn's Valryrian sword. The exchange happens around the 2:55 mark in the video below.

So, put together, Jaime and Brienne have the two halves of Ned's old sword, the ancestral Stark weapon known as Ice. Even though he died way back at the end of Season 1, Ned's legacy has continued to loom over the events of the show, particularly in Season 7. If we had to venture a guess as to where the two of them end up fighting in Season 8 episode 4, somewhere near Winterfell makes the most sense.

The stakes of this battle are still unclear. Perhaps Jaime and Brienne enact a brave last stand to allow the remaining Starks to escape and flee south. We know Arya can hold her own in a fight, but Sansa and Bran will certainly need protection if the war against the undead comes to Winterfell. Maybe Jaime and Brienne gain a decisive victory over the Night King, with Jaime finally transforming his Kingslayer nickname into something honorable.

Since these set leaks come from the presumed fourth episode in a six-episode season, the prospect of a Jaime-Brienne team-up suggests Jaime doesn't go back to Cersei with his tail between his legs … at least not right away. Either way, the symbolic meaning of their weapons strongly hints this battle will play a major role in determining the fate of the North and the Stark family.

Game of Thrones Season 8 comes to HBO sometime in 2019.

What are you hoping to see from Jaime and Brienne in Game of Thrones Season 8? Will they make it out of this battle alive? Let us know your thoughts in the comments.