Almost everything from the EP1 extraction sequence has appeared now, except the firefly wings/firefly which is what the last trailer before the premier opens with. I wonder how it will show up if it's not just a simple thing that fits the theme of summer the GAO guys' mask design is somewhat firefly like.
Many questions have been answered since EP1-3, I think a satisfying closure is very much possible at this rate. A random thing from this episode is how similar the hesitation in the rain in a crucial moment scenario, was close to the one in To Be Hero X with Yang Chang. This is the most fun I had for a long time now watching anime (I don't care it's anime to me).