Thanks for a Spam Bumb!
I never commented on this, i totally agree with Gavins Assessment
The main REASON could simply be down to Time Past since Aliens, as in order to have Newt Alive they would have to Cast someone else to play Newt as Carrie Henn would have been about 15 when shooting Alien 3, she would have been 6 years older and so they would have had to cast someone else to play the 9-10 year old Girl.
Sometimes this happens.... if we was to go for a Blomkamps Alien 5, Ret-con of Alien 3, then they simply could not have this movie be a direct sequel taken a matter of weeks or months latter due to the age of the cast at present.
The Alien Franchise could face similar again if Disney Decide to not make any Alien Prequels for say 15 years, and then they go to make a Alien Covenant Sequel.... then we have Fassbender who would have to play a Android who surely would not have aged 15-20 years since Prometheus.... But alas nowadays and in 15 years we could just do some CGI work and make Davids role less....
But if Special Effects was at the level it was in 1991, then obviously pulling of a David and making him look 15 years younger would be hard to achieve.... but then they could cast a different Actor... but its the case of is this the right thing to do with the Franchise?
And so i feel similar problems had arose with Alien 3, would it had been better to do any Look-a-likes to Newt? That limits you back in 1991 to also finding a Actress who can do the role Justice too.
While on the Subject of Look-a-likes... If a Blomkamp 30 years latter Ret-con was made and the Torch was to be passed to Newt, as a New Action Heroine... i certainly know ONE Carrie Henn Look-a-like.
