I know this is far fetched but could Brienne be AA? Wouldn't AA being reborn as a woman really throw everyone off and GRRM love doing that... It's something about the sword Jaime gave her. Valyrian Steel is usually dark steel... But for some reason the Valyrian sword Jaime gave Brienne was redish steel... It bring you to mind of Light Bringer... The only thing missing is it being tempered with blood... Or was it tempered when Ice was used to cut off Ned Stark's head? Or do Brienne have to run the sword through Jaime's heart to bring it to life? We know she is in love with Jaime. That's how AA brought Light Bringer to life... With the blood of his wife he loved with all his heart.
Of all the characters none is as honorable as Brienne. She was hung by undead Cat so the being born again prophesy is covered. But out of all the Valyrian Steel swords or any Valyrian steel, why is her sword the only one redish steel? And who made Lord Tywins two swords? We know he used Ice to make the swords but who is still around who could forge Valyrian swords?
Of all the characters none is as honorable as Brienne. She was hung by undead Cat so the being born again prophesy is covered. But out of all the Valyrian Steel swords or any Valyrian steel, why is her sword the only one redish steel? And who made Lord Tywins two swords? We know he used Ice to make the swords but who is still around who could forge Valyrian swords?