“The last time [Ridley and I] saw each other we talked about it. The character is still interesting [and] I’d love to work with Ridley again… But Fox has effectively killed it because of ‘Alien vs. Predator.’ What else can you do with the creature? You can take the situation, you can go back to where they came from… To play someone who ages a couple hundred years was fascinating… [But] let [Ripley] rest.”
So there you go. ALIEN VS. PREDATOR officially killed Ripley, killed her dead. I guess the consolation is that we did get that sick BAD BOYS type scene where Sanaa Lathan and the Predator run through the polar ice caps though*.
*Not actually any consolation.