I want to see more of Ghost of Tsushima because boy is it pretty to look at. The wide FOV and hard contrast of the light gives it this interesting painterly look. That, along with the constant motion, made me think the foliage look a bit like the paper mache from something like Kubo. Very neat.
My biggest E3 announcements was that Dissidia is getting a user accessible tournament mode that unlocks everything and a bunch of other stuff later this month (most of this came from a dev stream yesterday and not from E3 but the timing lined up so it still counts).