Don't be so sure of that. This is 21st Century Hollywood, they like to tell the audience everything in press releases and trailers these days. It would be very shocking and a breathe of fresh air, if somehow Scott was able to keep it all close to the chest and not show us any of those amazing things, so they would be truly shocking when seen in the film. Just like Alien.
But i'm not gonna hold my breath on that, honestly.