More about the game at Kotaku
. Take it with a grain of salt, but so far lines up with what has already leaked (including confirmation of at least one delay because of A:CM).
"...the protagonist of Alien: Isolation is Amanda Ripley, daughter of Ellen Ripley, the character that made Sigourney Weaver famous and kicked off the ubiquitous sci-fi franchise over 30 years ago. Amanda, who is mentioned in the special edition of Aliens as having died while Ellen was frozen in space, has not yet been the focus of any books, movies, or games in the Alien extended universe.
You, as Amanda, spend most if not all of the game on a single space station, according to our source. There's only one alien for "most" of the game, our source said; you'll mostly be shooting through "clones and soldiers." Vents, lockers, and melee weapons are a big part of Isolation, our source said, and the game is heavily inspired by the first Alien movie."