According to the Azor Ahai prophecy the Night King threat isn't over

Potential Spoilers Below

“Burnt,” said Salladhor Saan, “and be glad of that, my friend. Do you know the tale of the forging of Lightbringer? I shall tell it to you. It was a time when darkness lay heavy on the world. To oppose it, the hero must have a hero’s blade, oh, like none that had ever been. And so for thirty days and thirty nights Azor Ahai labored sleepless in the temple, forging a blade in the sacred fires. Heat and hammer and fold, heat and hammer and fold, oh, yes, until the sword was done. Yet when he plunged it into water to temper the steel it burst asunder.

“Being a hero, it was not for him to shrug and go in search of excellent grapes such as these, so again he began. The second time it took him fifty days and fifty nights, and this sword seemed even finer than the first. Azor Ahai captured a lion, to temper the blade by plunging it through the beast’s red heart, but once more the steel shattered and split. Great was his woe and great was his sorrow then, for he knew what he must do.

“A hundred days and a hundred nights he labored on the third blade, and as it glowed white-hot in the sacred fires, he summoned his wife. ‘Nissa Nissa,’ he said to her, for that was her name, ‘bare your breast, and know that I love you best of all that is in this world.’ She did this thing, why I cannot say, and Azor Ahai thrust the smoking sword through her living heart. It is said that her cry of anguish and ecstasy left a crack across the face of the moon, but her blood and her soul and her strength and her courage all went into the steel. Such is the tale of the forging of Lightbringer, the Red Sword of Heroes.

Arya became no one after she was stabbed in the stomach by the Waif and jumped into the water.  After climbing out again she eventually defeated her.  However, she tried to kill the Night King IMO but failed as he simply warged Bran.  The blade that was tempered by water metaphorically broke.

Tempered by water?

If it goes like I believe and Tyrion starts putting 2 & 2 together and Bran (i.e. the Night King's vessel) tell lies about him and everyone believes Bran over Tyrion and he rids himself of this treat.  This would be tempering the blade by plunging it into the heart of the lion.  Again, the blade tempered by the metaphorical lion would break and the Night King threat would still remain.

Again, I think Dany will be captured by Cersei and given to Qyburn.  If he experiments on her as I believe and turns her into the Night's King corpse queen. Jon will then be the one to kill her after he learns what was done to her.  I believe at this point Lightbringer will be forged.

Why I believe this to be true:

The ending you all deserve

Comments encouraged.  Love to hear the idea’s of others.  Most believe that since I present my idea’s as “fact like” I’m not open to change my viewpoints which is far from the truth.  I simply look at the information presented and go from there.  If you can shine a light on another way of thinking that opens the door to debate.