Everybody loves a happy ending, but from what Martin has told us we n't in for that. And there's a very clear reason for that, what exactly would bring a happy ending to asoiaf?? With the very clear picture Martin has painted us, we know that a happy ending is only from the side who wins. Fire wins, Daenerys, her dragons, Melisandre, destroys all the white walkers and win, and save a good chunk of humanity. Well that's the story that all of us could get behind...because we are human...
But what of the white walkers, are they not living things because of some beastly qualities? If it was humanity slaughtering I feel many an opinions would change and differ in the winner. But They are white walkers you say, duh...But they started as humans and none of them were given a choice. They are kiling their enemies just as humans do theirs, except they don't kill their own. I don't think it's because they don't have power struggles, arguments or ill feelings, although they are living feeling beings. (When they get hurt, they feel it, not sure what else they feel, but probably 100× the internal pain for being something they didn't choose.
I think they don't fight because they believe in their King and what he showed them. This is the only part that ties in with the show, that we have learned The Night's King can greensee and warg the dead. Both very powerful abilities and with Lands of always winter, and the WW nor their dead need to eat, it makes me wonder why did they feel the need to head south? To kill all man, woman and child alive? I'm not buying that, it wasn't humans who betrayed them.
Do you think they want to be Lords with money, fame and power?? No
Maybe revenge on the children? Very possible but I think it's something completely else.
I think that the white walkers are moving out because, they know if they don't, then the history of Westoros will be wiped clean forever.
Every man , woman and child wishes that they rewrite their own history to make a happy ending, especially those like myself who have felt real pain from real loss, I'd much rather been murdered at the time than feel that but...
Almost every living being wants to be alive over dead, but even those who wish for death, still know in their hearts they would rather have been a part of life at all than never was.
Well that's where the children and Bran come in. The two great plot twists will be the joining of Ice and fire, as in walkers and dead fighting side by side with dragons and the living.
And why the he'll would that make sense? It leads to our bittersweet ending. Poor poor bran only ever wanted to be a knight but he ended up crippled. He was a sweet innocent boy who didn't want to live as a cripple, so he grew hateful. He grew hateful through everything his family endeared. But what kept him going? A great power he had, ability to greensee, ability to warg animals. Then he grew stronger and he could literally warg humans, and even stronger he could affect the past.
It will all start out innocent enough, but as we see every time Bran gets more curious more people die. After he opens all of his power than we all know what will happen.
We all know power can corrupt even the greatest man, well how about being the most powerful living being on Westeros? A God. There is nobody ever that could handle all that without it affecting them for the worse, because all living beings have feelings, and feelings are what drive us all. I believe eventually he will be so wrought with darkness that he will wish to wipe it all away, as in all of history to start again
This is exactly what the children want. Before the first men came and slaughtered them, they lived happily and peacefully. Then they made the walkers to fight for them, but the walkers were so hateful for going from human to beast, that they turned on everyone. So more children died and human too until the children needed humans to survive.
So now we have come to our final chapter, the song of ice and fire having to join against the children and Bran. I believe Bran will be deep under the Gods eye by the end.
Nobody is absolute good or evil they are merely fighting for what they feel is right.
I believe Meera will be Azor Again as she plunges her sword into her nissa nissa, Bran. She will burn away the darkness and all the children and magic will end.
And we will all be told this great story by Samwell Tarley.