It's interesting to think but they put more money into doing less episodes and really all they've bought themselves is poor writing. I think that decision alone has handicapped this show entirely.
I actually liked the episode, I thought there were plenty of great moments, but for more Drogon, a Nymeria, and her real-life trained wolves, and Ed Sheeran this season, I feel the writers did themselves a disservice and could've written better without paying more for those episode-count limiting features.
This season is basically plotted now. The Westerosi Avengers are going to succeed, possibly even being saved directly by Daenerys and Dragons. One of the dragons is going to die, killed the by the White Walkers. Cersei will be presented with a chained Undead and still disbelieve. Jaime might kill Cersei and bend the knee. Euron will fuck over humanity by still continuing the human war and probably take one of the other Dragons with the Horn/raise the Kraken (but you know, then be dealt with in the first two of six episodes in season eight). Sansa will usurp Jon in the North but Jon will think it's a good thing. Arya is going to kill Littlefinger after discrediting him.
I expect some surprises and big deaths - maybe even Danearys or Jon - but I imagine that the Wall coming down and humanity being united against of the White Walkers - minus Euron being an insane dick - is how this season ends.
The writers should have trusted themselves rather than trying to trump story with spectacle.