“I want this film to feel like it is literally the genetic sibling of Aliens, so it’s Alien, Aliens and then this film.” - Neill Blomkamp
Source
http://bloody-disgusting.com/news/33...eill-blomkamp/
Seeing the xenomorphs home planet and possible the destruction of it should be interesting to say the least.
And it wouldn't be the death of the franchise because they could make more movies set in a different timeline/location.