Consider that a big
? in the article subject,
but news has come to light of an Alien Quadrilogy Blu-ray boxed set coming Christmas this year (2010).
If you were Sega/Gearbox, would you not want to jump on this hype wagon? With Fox pushing this Blu-ray event out for Christmas 2010, and talk of a remake of Alien on the cards, and 10 months of prime development time between now and then, it makes sense to aim for the end of the year for an Aliens Colonial Marines release date.
If I was Gearbox, it's what I would be doing.