Even before the release of
Ridley Scott's
Prometheus, which acts as a (rather distant) prequel to his 1979 film
Alien, we've known the director and his screenwriters
Jon Spaihts and
Damon Lindelof had ideas for a sequel. Indeed, the end of
Prometheus, not to give anything away, is open enough to a sequel that Scott could pick up the story pretty easily.
And, yes, there is still interest in that project at Fox and from Scott, ...