The basic source of the hype is that Ridley Scott made two of the best science fiction films of all time, so when he returns to the genre to make a film loosely connected to one of those films, people have expectations that it will be on par with Alien or Bladerunner. Personally, I'm not getting my hopes up. With anything like this, I do my best to ignore trailers, teasers and script leaks and just go into the cinema with a blank canvas. Unfortunately, one of my friends who's a massive sci-fi fan is going nuts for this movie and keeps showing me all the stuff I'm trying to ignore.
There is an argument that Scott is at his best as a meticulous visual stylist, and science fiction offers him a creative platform to build and shoot a visually arresting and distinctive mise en scene. A huge part of what makes Alien and Bladerunner so good is the incredible atmosphere each film possesses. Even if these films had no dialogue whatsoever (which isn't too far from the truth) they'd still be cult classics just for the way they look, sound and move. There's also an argument that he made those films 30 years ago in close proximity to each other, and what a director did 30 years ago, in any genre, is no guarantee of what he'll do now. Also, from what I've seen, Prometheus doesn't look like a slow-moving, ambience-heavy film.
> The Rebel Alliance [Tech/Progressive]
> The Sunset Session [Everything]
> Live @ Repose 001 12.02.17 [Ambient Electronica]
> The Dead Laptop Blues [Progressive Tech]
> Things I Can't Understand [Melodic]