As interesting as I'm finding all this, I can't help but feel that if the film goes the way we all expect, that it takes away from Alien.
The crew of the Prometheus clearly encounter the Space Jockey race in a hostile situation.
All the viral info on Weyland Industries suggests that the Prometheus project is high profile, and therefore when the ship (presumably) doesn't return home, or it's findings aren't publicised, no one would wonder what happened out there?
Even if there is no method (or no one left alive) to report back to Weyland Industries exactly what happened, surely the company, the government, or even the public would question what the hell happened?
Then when you consider Weyland sent their most cutting edge space ship, with a high profile crew armed with the latest technology and advanced weaponry (which the Weyland Company Time Line goes to great lefts to portray) out to explore the unknown, that next time they get a whiff of something similar they simply send a (less advanced that David) Android, unarmed with an unknowing civilian crew with an almost prehistoric ship (compared to Prometheus 30 years earlier!!) to investigate?
I can only guess they'll have to make all evidence destroyed to explain the fact that the next time the human race encounter anything from the film, is the "distress" beacon from Alien.
For the film to make sense, it CAN'T be the same planet, otherwise it just makes the decision to re route the Nostromo alone ridiculous.
