(SPOILERS TWOW) About a certain letter

What if the pink letter is true? I'm thinking maybe is true.

I'm guessing that because how the show ended that "winterfell's knot" maybe gave to us some clues about how grrm can resolve the situation of a lot of characters.

I'm seeing this route: Stannis win the battle on where he is right now, but fails to take Winterfell. And Ramsey kills Stannis. And start a path of violence akin to the series. Shireen dies, but because Mel wants to resurrects Jon (or perhaps "the true king" after she knows Stannis is dead but Rhllor surprise her)

But honestly I don't know how Rickon can come back on this scenario, nor Sansa, so there goes that against the veracity of the letter.

So what are your opinions about the pink letter?

Could it be true?

Edit: I wanted to post this because everyone here, including my self believes it's fake. But besides the suspisuous term of "crows" it could be legit for all we know