Sorry to comment so late. I finally rewatched the episode. The first time through, I have to admit to being a little disappointed. The episode felt so much like an episode 8 somehow; like all of the chess pieces were being moved into place for the big finale. Most of the extraneous characters are gone, and there are just a few plot lines left is to clean up before the big WW war to end the series. Rewatching, I have to admit that I was wrong to be so grumpy. D&D have to get rid of peripheral plot lines, or they will end up in GRRM hell with an unfinishable series. I'm happy that I didn't have those thoughts clouding my enjoyment on the rewatch. There were a couple of moments that were lackluster, but overall the episode was amazing: the acting, the music, and the directing.

I love Cersei's supervillain costume. She needs a cape, and the look will be complete. The scene when Cersei goes to see Tommen's body had my heart in my throat. She seemed gripped by that terrible numbness that has you going through the motions without the ability to grieve. When she ordered that Tommen be burned, I thought of the episode where she spoke about how haunted she was by her mother rotting in the ground.  I don't remember whether there was anything more to the prophecy beyond the deaths of her children. Season 7 will be fun.

Walder Frey is DEAD! The Jaime and Walder scene was flawless. The whole Arya thing was predictable, but it came out of nowhere. One less scene in Dorne, and one more in Westeros would have been nice.  Arya was the same servant who was flirting with Jaime. The servant's demeanor was very Arya-esque in the murder scene, but the lusty looks seem like a stretch for Arya. I wish we knew if and when Arya killed the servant girl. Was it after the Lannister/Frey feast? Or was it at some point earlier?

I loved the Jon/Sansa/LF dynamic. I don't think Sansa has ill will against Jon. I think she's so badly damaged that she doesn't know how to trust. And she's annoyed that Jon (and little Lyanna) don't give her the respect she deserves. Jon is correct that Sansa should be the Lady of Winterfell, and little Lyanna should absolutely be supportive of that. As for LF, I think Sansa sees his declaration in the God's Wood for what it is. It's an attempt to manipulate her and drive a wedge between her and Jon. I absolutely believe that his end game is to sit on the Iron Throne, but I don't believe that Sansa is a necessary part of that vision. Her look at LF during the King in the North scene made me wonder whether it was a realization that LF is a threat who needs to die or her ambition getting the better of her. I'm fairly certain it's the former, not the latter. 

The Ned and Lyanna sequence didn't indicate who Jon's father is (even though I know...Arthur Dayne!! ). Maybe that means more visions next season? But the fact that they bothered with his back story renews Jon Snow's plot armor till pretty close to the end of the series. Oh, and as to the visions, I thought it was interesting that Ned looked back in this version too, even though Bran didn't call out to him this time. So maybe that means that he is basically powerless in his visions.

TL:DR - I liked it!  And when/where did Arya get the face?