Alien: Covenant director Ridley Scott said in response to a fan question that Sigourney Weaver’s original Alien series character Ripley could still make an appearance in the prequels, possibly with the help of de-aging CGI.
Scott indicates that two more films would have to elapse before Ripley could make an appearance in the new line of Alien movies.
We also know that Scott plans for Ripley to be the progeny of a character from the prequels, possibly the Waterston character.
Prometheus introduced the android character David (Michael Fassbender), whose story was continued in this summer’s box office disappointment Alien: Covenant.