If Prometheus and Alien were the only two movies in the series things would line up just fine. (for the most part) Just saying that to point out that Scott has been consistent....even if Prometheus as a movie was a bit lackluster.
As for the game....I am looking forward to it. I don't expect a lot from it however and I doubt seriously I will buy it immediately upon release. It doesn't seem to be bringing anything really new to the table that would encourage me to jump on it straight away. At least not based on what has been shown up until now. I am looking at it more like I look forward to the next Serious Sam game...brainless fun set in a universe/atmosphere that I find entertaining but not overly original.