Well sure, it does seem like they showed a ton of content at E3, but then they put in perspective and say theyre really only showing a tiny part of the whole world. They showed a lot of gameplay basics because theres a lot of new concepts to show that are very different from the rest of the series. You dont get a permanent primary sword/weapon; it doesnt seem like you get additional heart containers; there are multiple ways to solve problems; the whole concept of survival seems pretty important; and they wanted to show you can do pretty much whatever the hell you want.