a) Use of Bioweapons
Ridley imagined that the derelict ship was a battlewagon as he developed his ideas with the making of Alien, and seemed to have the idea that there was some sort of a war, and so this thing was all about destruction.
And so there was a question back then that one might have asked, who were they fighting with.
Was this some sort of prehistoric war touched upon by HP Lovecraft in his novels?
The derelict however was piloted by something referred to by the production crew as The Space Jockey, not at the time thought to be a tall humanoid in a suit as seen in Prometheus, but they would represent the same entities as least.
b) The Engineers
Ridley thought about Prometheus opening up possibilities for sequels like Alien, however this had gone in a different direction that Alien.
He found that God in the Old Testament was someone who could be very harsh on the human race.
This was a story about creation and then destruction, with the idea that if you realise that you've created something and it was wrong, you want to generally wipe it out and start all over again, as if wiping the slate clean.
There was the line where Shaw says to Fassbender. "Where they're going?"
He replies "Earth", she asks "Why" and he replies "well, sometimes to create, you must first destroy"
And this line came from Joseph Stalin, once a leader of the Soviet Union until 1953, and during a period from around 1936 to 1939, led a massive purge (known as "Great Purge") of the party, government, armed forces , intelligentsia and so on, and the dead numbered in their millions, and with that one is moving into a story of epic proportions.
In Prometheus, Ridley introduced us to the Engineers as an aggressive race, and expected the audience to consider their brilliance in making dreadful devices and weapons that would make our chemical warfare look ridiculous.
So far in the Alien films there is the egg and in Prometheus there are the urns full of the strange black substance to consider.
Perhaps there is an off world situation where these Engineers lay seed to planets and planetoids, and this is their self given role within the context of their own version of the universe, perhaps like gardeners of the universe.
The engineer that we discover in Prometheus although possibly a godlike being in the movie is certainly not God.
The planet turns out to be a place considerably dangerous enough for Dr Shaw to realise that it was a mistake to go there after all, but once she finds out that these Engineers can still be alive and come from somewhere that can be reached, she wants to go on to find out where they come from.
There is the question about whether or not they are gods, and if they are not gods then perhaps they are just simply us as the human race.
But where does the buck stopped, who made them and what is the grand plan, what is it that everything is contained within.
There would be further ways to evolve the story and here Evolution was a key word for Ridley.
In terms of this, even Stephen Hawkings admitted that he thought that there might be other forms of life out there and hopefully they wouldn't visit because they wouldn't be nice.
|Gustave Doré's Lucifer for Milton's Paradise Lost|
c) See: Alien Covenant: Heading towards Prometheus: Paradise Lost: Impossibility of existence leading to Kubrickian Questions, leading to the hunt for the big boy
- Collider I’m one of the people who really enjoyed Prometheus and I believe you are making a sequel
Ridley Scott: Yes we are
Collider : I’m just curious if you can talk a bit about it. What’s your goal with the sequel and when are you filming?
Ridley Scott: You’ve got to follow through, I mean it, It starts off, Prometheus was a very grand idea—or grand question, really of who are they and why did they create such evil biology or bacteriology? Um, to protect themselves from what? And so it's a part of that, the questions are answered there, or beginning to become answered in Prometheus 2. (http://collider.com/prometheus-2-story-revealed-by-ridley-scott/ September 16, 2015) ,
- Interviewer: Your next film is a sequel to “Prometheus.”
Ridley Scott:Yeah. Well, really it’s “Alien.” They’re going to go to the planet where the engineers came from, and come across the evolving creature that they had made. Why did they make it? Why would they make such a terrifying beast? It felt bio-mechanoid, it felt like a weapon. And so the movie will explain that, and reintroduce the alien back into it.
There was always this discussion: Is Alien, the character, the beast, played out or not? We’ll have them all: egg, face-hugger, chest-burster, then the big boy. I think maybe we can go another round or two.
Interviewer: When you were making the first “Alien,” did you think there was more to explore with that creature?
Ridley Scott: Yeah, definitely. I knew we had done something special. I mean, I knew it as soon as I met with [painter, illustrator and creature designer] H.R. Giger. He was an artist in every sense of the word, but very businesslike. There was no rock ‘n’ roll — well, there was quietly, but he never brought it to the set. And I knew I had something special with this creature that he designed. Without that creature, the film wouldn’t have been the same. (http://www.thewrap.com/ 11th December 2015)