You're not a writer, it would appear.
The idea is to begin pulling on all the lines that draw the net.
- All the living Starks have been assembled at Winterfell
- Jorah Mormont is reunited with his house
- Samwell has convinced the maesters of the Citadel to pay attention to the coming Long Night and has traveled to Winterfell, where he learns that Daenerys has executed his father and brother and where he informs Jon of his true heritage. From a script writing perspective, the discord that establishes so early on is a bit surprising.
- Jon has ridden a dragon. Per the above point, given that there will now be some level of disharmony between the two surviving Targaryens and both are now dragon riders, there's the possibility of another Dance of Dragons - above and beyond the conflict with the Night King.
- Theon rescues his sister, who foreshadows the importance of the Iron Islands as "someplace the dead can't get to." Meanwhile, Euron has finally succeeded in bedding Cersei - his loyalties are now in question since he's done the one thing he set out to do, as foreshadowed in his conversation with Yara before her escape.
- Arya's request of Gendry shows us that she will be in the midst of some battle with the White Walkers - the weapon she has asked him to make is awesome and she will wind up fighting alongside the Hound, who now has an ax of dragon glass.
- Sansa continues to strengthen as a character. She's a solid candidate for ascension to the Iron Throne when all is said and done.
In evaluating 54 minutes of television the question to ask is, "Is there wasted energy - is there any one scene that appears to have no value?" The answer to that question is "no".
