All aboard the hype train!

Final episode is airing in several hours, titled "Mother's Mercy". Many people associated with the show have said this episode is going to "break the internet" and will be "the best hour of television ever". From a book-reader viewpoint, there is a lot to be hyped for; however I think there will be content in this episode that will surprise them as well. Runtime is only 63 minutes, which doesn't seem enough, but oh well. What are your predictions/what are you hyped for?