William Gibson's Alien 3 script

I'm guessing most of you have read Gibson's Alien 3 script, which never came to be. I personally thought it was an amazing piece of work that had this potential to completely open up the imagination of the Alien Universe, rather that shutting the door on it as the real Alien 3 did. The best thing about Aliens was that it expanded upon the Alien life form and brought depth and ideas to the table. It in effect advanced the species. None of the other movies really brought new ideas to the table, sans the Predalien queen in AVPR. Gibson's script, if made to movie, would've advanced the alien life cycle further while getting away from Ripley and making this a universe. I have yet to see Prometheus, but i'm well aware that "other forms of alien" are present in this movie. I'm wondering, to those who have both seen Prometheus and been fans of Gibson's Alien 3 script, do you think this movie would've been done differently if Alien 3 was Gibson's story and would it be for the better? I ask because i can see the Alien universe turning back toward Gibson's script if Prometheus and sequels branch out enough.