Recent "Game of Thrones" season 6 finale spoilers revealed that Cersei may succeed in her promise to burn the King's Landing to the ground. Apparently, the Lannister matriarch has been vowing this for several seasons already.

Vanity Fair reported that "Game of Thrones" season 6 episode 8 looked pretty grim for Cersei Lannister as she was betrayed by her son. King Tommen has declared that she cannot use the Zombie Mountain to fight her battles for her in the trial.

Afterwards, though, her right-hand man, Qyburn, came with mysterious news. "That old rumor you told me about," he said to Cersei. "My little birds investigated."

"Is it just a rumor or something more?" she asked him. "Much more," Qyburn replied.

"Game of Thrones" season 6 episode 8 has revealed that Cersei definitely has a new plan. Moreover, it involves fire.

Earlier this season, it was discovered that the city has a huge wildfire underneath thanks to King Aerys. This led to speculations that Bran's vision of the eruption of green flames was actually from the future, not the past.

In "A Feast for Crows," the fourth book in "A Song of Ice and Fire," Cersei blows up the Tower of the Hand during Margaery and Tommen's wedding feast with wildfire. The publication noted that the "Game of Thrones" season 6 finale may use that explosive plot.

There are speculations that Cersei's plan will not just affect the Tyrells and the Sparrows. Furthermore, there is a possibility that Tommen will not survive the explosion.

According to IGN, Cersei may have heard the whispers of Aerys' massive unused wildfire. It was noted that in "GoT" season 2, the Lannister matriarch enlisted pyromancer Hallyne to make wildfire for her.

"Though the destruction of King's Landing -- or even a portion of it, like the Sept of Baelor -- is an extreme decision, it doesn't seem outside the realm of possibility at this point in the series," the website wrote. "Honestly, with all the odds stacked against her, why wouldn't Cersei torch the city that turned against her in order to come out on top?"