I think for Prey 2, they really have to make a world and enviroment
completely different from that of Prey.
A big part of what made Prey so amazing was just how
alien the sphere was... it really seemed like something so completely different from our world because of all the little innovations the game had in it, from gravity flips to wallwalks... if Prey 2 just showed a similiar world, it would feel too familiar and lose that sense of alien-ness... it needs to show something weird and alien, but it should be alien in a completely different way from both Earth and the sphere, and should stand out in it's own unique way.
But even with all the differences, definitely keep those portals around.
