maybe the only connection in THIS prometheus movie will be the space jockeys and a version of the alien. they might consider making the connection storywise (crash of the sj's ship) in a potential sequel to prometheus - or not at all...
It has now been confirmed so many times that the film will take place in t he Alien universe... but it's NOT an Alien film in itself. So I don't know why people are complaining here and saying that a galaxy built for 20 years is being disregarded in this film. It's not, its simply a standalone film that will tie in with the first Alien movie (I still think it will not accept "Aliens", "Alien 3" or "Rez" as canon, it will redefine what we have known so far about xenomorphs. Don't expect "Hive", "Drones", "Queens" etc.)
Scott is using the first Alien film to create something bigger and more meaningful (If anything in that storyline that I just read is true). I can totally understand why he didn't want to make it an Alien movie, because the Xenomorph Alien is just one part of this gigantic universe that he is about to unleash on us.