This is a great name for a sequel but only a good movie. More aliens are maybe only a little more scary. You can definitely see where James Cameron is headed. I thought the giant robotic exoskeleton was very well done.
I think that being involved with an Alien movie is about the best career move a director can make. Check out the legacy:
Alien - Ridley Scott
Aliens - James Cameron
Alien 3 - David Fincher
Alien: Resurrection - Jean-Pierre Jeunet (of Amelie fame)
That's good company to be in if you ask me.
Aliens (1986)
