Other than the whole thing with Vision, they really haven't shown us all that much. They won't even tell us the name of part two because it's going to be a spoiler, so there's at least one major thing that they haven't shown yet. This is only the first trailer, so there's going to be a lot more to come as the date draws closer. At this point though, either you're going to see the movie or you're not, and trailers aren't going to make much of a difference. This one was okay, but there was nothing super-crazy in it that got me excited. I'll go see it, but it'll be because we're over a dozen movies in and I'm interested to see what happens to these characters, not because of this first footage.