All of that concept art is ultimately academic until there's a script in place. The way screenplays are written for big blockbusters is something of a dark art, with the writer (well, usually writers, plural) rarely just purely providing a story of their own devising. Studio heads, producers, directors and everyone else will have a say, throwing their own wishes, ideas and scenes in there. Considering the project has just been greenlit, and there's been no rumours of a script existing beforehand, it's unlikely there's a finished script in place for Blomkamp's Alien film yet. Which means the concept art is likely just his free-associating on what would be cool in a new Alien film. Which also means those ideas could still wind up in there, especially if Blomkamp writes the screenplay himself. He's written or co-written all of his films, and they've all got the same sci-fi bent with themes of big corporations screwing over the little guy. Also: cool robots. But most other Alien films have been written by multiple people here's hoping Damon Lindelof isn't involved...
Tom Baker is the Comics Editor at WhatCulture! He's heard all the Doctor Who jokes, but not many about Randall and Hopkirk. He also blogs at http://communibearsilostate.wordpress.com/