Maybe I'm reading this wrong, but isn't the suggestion in the press release that the universe is the same, only it deals with different creatures? Thus, no Xenomorphs, but still the world the films took place in?
"The keen fan will recognize strands of 'Alien's' DNA, so to speak"
this suggests to me that things like Antarctica Traffic Control and Weyland-Yutani and fan-oriented trivia of the like will be getting mentions in order to root it in the same world. Now, i'm probably wrong about that sure, but it would be an interesting way to do a reboot - tackling the universe, rather than just one of it's malignancies.
As long as I forget about Soldier, I'm all up for 'sidequels'!
EDIT: You guys have been arguing this point for pages, haven't you? Sorry - had no time to go through before posting.