It doesn’t seem right that all 8 seasons and the book prophecy end the white walkers and the night king this way. I believe that we are yet to see the real end to them. I believe Azor Ahai prophecy hasn’t been fulfilled. I believe the white walkers are still alive and are heading back through the wall and the next time we see them will be at Kings Landing or wherever the last battle is located. Jon Snow or Aegon Targarian will kill Dany or maybe Arya to get the flaming sword and the epic battle will happen. We will see the NK battle Aegon and Aegon will win. Once all is down and winter has come, we will see Dany’s vision from the house of the undying come to life, where Kings Landing is in ruins and snow.