I'm so excited for this film.
The only thing missing that makes it a true Alien film is Sigourney Weaver and the xenomorph, but it makes sense why they aren't putting her in it, however wouldn't it be awesome if towards the end of the movie, all the chaos is over, and an Alien emerges from someone's chest?
I don't know anything about the plot yet, but what a great way to tie it in to the first film.