We see a clear picture of the Space Jockey, one like the one in Alien, in that trailer. Oh shit, this trailer was amazing.
What I'm confused about, is that it seems like one of the crew members will become all bio mechanical and all, but at the beginning of the trailer we see the "blue man" in the waterfall scene with the big flying saucer. So, I have no idea what to think. I just know that it's going to be amazing.