I don't know who's been filming where, haven't followed that at all or seen the latest fan theories but the fan theories you've been mentioning have been out there for quite a while. There's a couple of things you say that do make sense and I could see it happening although I don't think it's the best way for the show to go. But those things are just fluff so they don't matter much to the 2 major points of the story which are who is the Azor Ahai who will forge lightbringer to take out the NK and who sits on the Iron Throne in the end. Both those 2 central points point to nobody other than Jon "not Snow" Targaryen. Rest assured Lightbringer is not a metaphor but rather the sword required to take out the Night King.
First of all, I never had said that Jon won't be the one to kill the NK. Not at all, I think he will. There can be more than one hero in this story after all. The debate is how much of an active participant Bran will be, and what is his role. For instance, Bran could stop the NK's army, while Jon actually is the one to kill the NK. And there isn't any trope as old as the "lightbringer" crap. Jon doesn't know about the sword, seems like Mel would have informed him of it's importance don't you think? All the signs point to a division between Jon and Dany upon learning of Jon's true parents, not some love sick puppy forced to plunge a silly sword not heard of since season 2 (yeah, I did forget about the Stannis scene) into Dany's chest. Not going to happen, not without 100k Dothraki and a thousand unsullied instantly killing Jon, not to mention the dragon.
Yeah, I could see Arya or Tyrion killing Cersei but it just wouldn't be the same or as impactful as having Jaime do it would. I do think Tyrion will turn on Danyreus, not that he always planned to but when the fight comes to his city where his family ruled for so long and he fought nearly to the death, he will turn. So those 2 things you claim I'd say have a somewhat good chance of happening.
Ask yourself this, which have been given more screen time, Arya's development into a killing machine, and her "list", or a few mentions of the valanquor prophecy (which btw doesn't need to be Jamie to be fulfilled)?
As for me giving Bran a diminished role, I don't think I do. It's just that the fan theories you've adopted as your own
I never claimed they were my own, quite the opposite. I gave credit and provided links. The discussion is how possible are they?
give him a far greater role than was ever intended in this story.
Quite the opposite, your giving him a far smaller role than suggested in the book. Have you forgotten that "Bran" was the first chapter in the first book?
His role, as 3 eyed raven, is one of intel and the guidance he provides with the information only he knows. He's certainly not a fighter and there is no sensible way he can be seen as the one who defeats the NK.
Bran can be a fighter if the situation calls for it. We seen this in the cave sequence when he warged into Hordor. Warging into a dragon is not that far fetched.
He could, and might, warg into one of the dragons but it won't be while the NK is in the same area cause we already know the NK can snap him out of that warging quick as he pleases.
I never said the NK would be in the same area. I allow for it's possibility, yes, but have not definitively said Bran would be the one to kill the NK, rather he will be the one to stop the NK, leaving him vulnerable.
Might see a scenario in which he wargs into 1 of Dany's 2 remaining dragons while they are not being ridden by Jon and/or Danyreus and while so doing he could save some major characters from an attack of part of the dead army. But it could not be used against NK cause not only can NK stop his warging but the fire would have no effect on him so there is no sensible way Bran could defeat him.
The Nk stopping Bran from warging is not a given, Brann's powers have become much stronger. Remind me of when the Nk stopped Bran from warging in the past?
So we get back to the 2 main focal points of the story, I've already stated how Danyreus will adopt the same thinking as Jon and leave the Iron Throne in ruins and make it no longer a thing so none can rule from it again and each kingdom can rule themselves.
That's possible, unlikely, but possible.
As for the AA prophecy, to believe the Azor Ahai prophecy, or any part of it, is not all important in the destruction of the NK, is to completely discount the character of Mel. There would be no need for the character at all. She has been all about finding the prince that was promised.
You mean the one she brought back to life? I guess that was no big deal. Why didn't she tell Jon about Lightbringer then? Don't you find that odd?
She thought it was Stannis, it was not but that journey lead her to Jon Snow who she brought back from the dead. She is now convinced Jon is Azor Ahai.
So Mel has gotten prophecy wrong before, but in the case of Lightbringer, she is correct? is that what your saying?
The only part of the AA prophecy that is hard to believe Jon can fulfill is the sacrifice required.
The sacrifice was given, at his childbirth.
He is not the type who would ever sacrifice someone's life for his own good for any reason but it all fits when you look at how it has unfolded in the show.
Killing Dany and his unborne child, making himself a kingslayer, a kinslayer, and god knows what else. I don't think so. or by killing Mel, who Jon has no feelings for at all, and in fact has already threatened to kill if he is to see her again.
The sacrifice required is not a sacrifice of statues of false gods in a fire or the sacrifice of an innocent child (2 times the forging failed). The sword is not forged by a literal fire but from the fire of another's soul.
metaphore
Still can't see the Jon Snow we know plunging a sword though the soul of a person to forge Lightbringer. Only Melisandre makes sense here. Having been warned by Jon that he would kill her for the crime of burning that innocent child alive if she ever returned, the stage was set. Having been warned, Mel still says she must return to die...
Agreed, my guess it happens at the battle of WF.
and she will. When she went to the Night's Watch, Mel told Davos she will do anything Jon Snow says cause he is the Prince that was promised. She also repeatedly tells Jon that she can help him defeat the Night King. Here's how it will go down. The time for the prophetic battle comes and Bran tells Jon he must forge the sword by driving it through Melisandre. She is taken back at first but then submits to the process. Jon, hesitant as well, but with doom impending he plunges the sword through her and Lightbringer is forged and he fights the NK with it ultimately destroying him.
Melisandra is not to Jon, what Nissa Nissa was to Azor Ahai. There is no great personal sacrifice to Jon in killing Mel, in fact he has told her if he were to ever see her again, he would do just that. With B&B it's plausable I guess, but would be terrible.