Well here is how I see it. Fox really wants the Alien franchise to be one of their signature series that they can showcase.
Why not give SEGA the money to get Creative Assemly to continue with the game series that everyone praised (except stupid IGN)
Also like I previously said, a new Alien Isolation type game which this time supports oculus rift type technology is a no brainer. Anyone with that setup would buy Alien Isolation 2 because It would have to be a "must own." It's the perfect game type for that technology when you think about it