Nightmare.. i like what you are thinking.. and i've posted similar ideas in the past.
My own idea for how to suplant the language barrier: Some Giger-device is implanted in Shaw's vocal cords. Painfully.
I'd use it to create a little bit of body-horror.
... i'd prefer to keep the language barrier though.
It just would "alienate" Shaw even further from her surroundings.
Could be apart of Shaws biosuit. A vocal converter designed by David cause his studied the engineers and understands there technology.
Would be interesting to see something like that play out.
Would also be interesting to see the Prometheus creation myth played out a bit more. The Engineers created us. We created androids. Our meddling in forces we didn't understand helped create some Frankenstein's monsters of sorts. But what biological and psychological horrors have the Engineers' other creations been up to?
I had a though the engineers themselves are Prometheus. The stole they technology and based themselves after another alien race (Could be the space jockey or something different) they learned how to travel through space, extend there life and create life. But theres a catch. They can't reproduce cause of the biosuit. There are those that refuse the technology to remain pure (like the engineer we see at the start) but want to remain religious in sacrificing themselves to populate the galaxy with new species. The biomechanical engineers hated them for it because they believed they would have they're power taken away from a lesser species and decided to dominate them. War breaks out. Many new creatures are made in the process but the engineer homeworld become corrupt by the biomechanical engineers. Paradise a now living nightmare. The pure engineers created humanity and wanted it to succeed were they failed or refused to fight. Dying for our sins. They left behind clues to find them on LV223. But the place captured and they were rounded up somehow and experimented on by the biomechanical engineers. One of them breaks free and releases the black goo infecting the place and dying to protect humanity. Paradise is the garden of eden meets hell.
That has to be the longest post I've ever done Hope it was clear.
Good post. I like to say exactly like you sometimes. But I'm not so inspired; for now.
The quote I really agree in your post is that part:"Paradise is the garden of eden meets hell."
This part says a lot.It's obvious their natural planet isn't too much different from ours.The "real" engineers like biodiversity.There is no other reason but because they created so many beings and forms.
The first enginner/Sacrificer doesn't have anything in common with the last enginner in Prometheus.One tries to beat us.The other one sacrifice himself for a bigger purpose.
But they have idea of this knowledge they have adcquired and that could bring madness for their people.
To act like a god has a price
So they are Prometheus!
And this madness could grow if we
, humans , get part of it.