Melisandre's vision (from the books)

[GeorgeIAF]

Remembered about this one, then looked on awoiaf, here it is :

At the Wall, when gazing into the fires, Melisandre sees a wooden face, corpse white, a thousand red eyes, and a boy with a wolf's head beside him. She thinks to herself that they must be the Great Other's champions, as King Stannis is hers. 

Further evidence in the text ties the Last Greenseer, Brynden Rivers, the Old Gods, and Bran Stark to the theme of darkness that draws The Great Other into opposition with R'hllor. The vision of Melisandre pointing towards Bloodraven and Bran as champions of The Great Other is corroborated in this exchange:

“There he sat, listening to the hoarse whispers of his teacher. 'Never fear the darkness, Bran.' The lord's words were accompanied by a faint rustling of wood and leaf, a slight twisting of his head. "The strongest trees are rooted in the dark places of the earth. Darkness will be your cloak, your shield, your mother's milk. Darkness will make you strong." 

 

Was Melisandre right ? Bran and BR might be the reason why the NK will be able to cross the Wall (unintentionally) and bring it down, because of Bran's mark and so on, i think Melisandre was right in a way.