Its called jumping the shark.........

What annoyed me most about the last episode was the weapon and accuracy used to take a moving dragon out of the sky from a boat a mile or so away. Not hit it just once, but twice in the same location and then a third through the throat?!?

And then the energy of said harpoon guns effectively packing more punch than a cannon in taking out half a ship with one shot. Yes its fantasy, but when you throw ALL sense of physics out the window it becomes tedious to watch.

Exactly!!!

This - Drogon will flame Tyrion and Jon - but Jon is immune to flame. Jon won't be able to kill Danaerys so Arya will have to. He will go back to the Nights watch at the wall. The other option is Tyrion doesn't get flamed and ends up on the Throne (Davos as Hand) with Sansa to the north. Jon goes back to the wall regardless

He'll return north.......i don't think the walkers are gone........the cycle will repeat........they'll rebuild the wall. The "Game" wills start all over again. Whether he returns to the nights watch or not......he'll definitely head North. Sansa or Tyrion or Bran will be on the Throne - not Jon.

There are the children that the Night King was converting. These weren't "dead" that were resurrected. So I'd say they didn't die when the Night King did.

The Walkers are part of the "game of thrones"........it'll all cycle again.

The White Walker/story line is needed for Bran......and Bran is needed as personally think he's the Lord of Light.

And also, no night king, then no need for Daenarys to go north, no need for Jon to bend the knee, she goes to kings landing, likely doesn't go mad, and overthrows Cersei - so was also needed for both Jon and Daenarys's character developement.

It would be way more boring. Plus - the babies that night king was converting.............I don't think the Night King/Walkers are gone for good.

The part I find odd about Jaime going back to Cersei is why they had him hook up with Brienne before doing so.............unless the Lanister lineage needs to live on through Brienne?

On to the prequels and sequels and spin offs. This is the problem with most of Hollywood in the last 10 years. They are so busy thinking about cashing in on the next thing, they do a crap job on the current thing. How many movies I've sat through in the last 10 years with such a terrible ending - because of the desire to set up the next movie. Remember the days before prequels and sequels? Having a road map as Marvel did is much different than ending a movie in a crappy way.......because the studio "wants" there to be a sequel has resulted in too many garbage movies.