Originally due sometime in late 2012,
In case you feel the game has been in development just a little bit too long at this point, Gearbox’s Randy Pitchford has some information for you: “The total development time we have spent creating Aliens: Colonial Marines is about the same length of time as we had spent creating the original Borderlands or the original Brothers in Arms”.
According to Pitchford, it’s just a symptom of Aliens: Colonial Marines being announced much earlier in its development cycle than those other games.
Watch the latest trailer for the game, below. In this footage the Marines have a lovely time investigating an empty spaceship and nothing bad happens to them. Then they make some tea and have a chat*
*This is a lie.