In light of the Disney/21st Century Fox news, 2 things need to be said:
1. The talks seems to be dead at the moment.
2. Even if the talks came back into play, Disney won't "Disney-fy" Alien, or Predator, or any of their more "adult" series. There's no chance in hell we'll get Xenomorphs VS the Avengers or a PG-13 film. It'll likely be what Touchstone and Miramax were like. But again, the whole deal will probably not happen.
So before people start freaking out: CHILL.