That episode was breathtaking. GoT is not just amazing because of its story, but the performances of many actors are simply astounding and then the way how all the scenes are choreographed and the music to set the mood are beyond words.
That Cersei was planning to set Baelor's sept ablaze with Wildfire had been predicted, but I never expected that this would involve the deaths of nearly all the Tyrell's and Lannisters. And then Tommen...many people disliked him because he was timid and weak-willed, but as a result it was quite hard to figure out what he was thinking because he himself doesn't seem to be sure. I was half and half expecting that he finally snapped and would try to kill his own mother (knowing full that she was behind it) and that he accidentally would die int the attempt...but then he suddenly committed suicide. In some weird way I kinda respect him for that as there was zero hesitation. No tears, no crying, no insecure voice...for maybe the first time in his life he was resolute and what harder punishment for Cersei than knowing she made her own child commit suicide?
It was surprising though that Cersei became the queen and sit on the Iron Throne. That possibility never occurred for the simple reason I thought that was plainly impossible as neither her allies nor her enemies would have ever allowed such a thing. There were simply too many people in the way of that, but yeah she blew them all up. I would have never imagined that this is how things would end up.
Ow yeah, Arya has obtained the face-swap trick. I was rather confused about the entire Arya storyline in Bravos as it I didn't get what now the purpose was, however I'm glad she obtained some of the skills of the Faceless Men. I was intrigued about the Twins scenes as I didn't know what to expect exactly. Jamie killing them all? The Brotherhood assaulting them? But when Arya started talking about how Walder' sons where there, it was immediately obvious it was Arya in disguise. This also means that both Bran and Arya are closing in on Winterfell as Bran is just north of the Wall (I assume the tree he was at, is the tree where the men of the Night's Watch who follow the old gods say their vows) and Arya is just south of Moat Cailin.
And FINALLY! Finally the popular theory about Jon's parents has been proven! It was rather expected, but still great to experience it. Yes it hasn't been stated specifically yet, but at this point there really is no doubt anymore. I still got mixed feelings though about everything that happened in the North this episode. I've been pondering for ages now on what Littlefinger's intentions now were, what he was striving for. I'm glad we finally learned it, but that he wants the Iron Throne is meh. I actually can see him succeeding at that, however not without there being many people against it, something he should be very well aware of as no matter how much schemes, betrays and confuses people, there's a limit to how far that works in his favor.
Then seeing Lyanna Mormont shutting all those men up and proclaiming Jon as the White Wolf and King of the North was satisfying, however it was not what I expected. At this point this seems to be a repeat of lord Umber proclaiming Robb Stark as King of the North and we all know how that turned out. I was almost certain that Howland Reed would barge in and tell the truth about Jon's parents for all of them to hear, but it seems they want to let Bran do that. This however provides future issues as I sincerely doubt Dany will accept yet another king in the North. It would have been ideal if Jon's heritage would have come out on that moment as that would almost certainly have led to him supporting Dany. I was not surprised that Dorne would aid Dany, but I thought the North would be first and that Dorne would immediately follow. Considering the connection between the North, the Vale and the Riverlands, it would be only a matter of time before the two latter would follow suit. So you only have the Tyrells and the Lannisters remaining, but because of Cersei now even the Tyrell's are going to support Dany's claim.
What disturbed me the most however was Littlefinger's attempt to drive a wedge between Sansa and Jon. When Sansa and Littlefinger were watching each other when Jon became king I first thought Sansa was giving him a victorious smile, but afterwards I wasn't so sure anymore. It took hell of a lot of effort to get the Starks back together and now that all the ones that are still alive are close, the last thing I want to see is them falling apart for something like this.