There are some rumored details about
Dead Space 3 on
Siliconera, which they say come from the same source as their
Syndicate details link. Word is the game is not set within the confines of a spaceship, but rather on "Tau Volantis, an icy planet where Isaac Clarke has to wade through white-out blizzard conditions." No word on whether your tauntaun will die before you reach the first marker. Be warned, there are spoilers within, albeit unverified.