According to an interview with ComingSoon.net, Sigourney Weaver says that there are apparently plans for her to return in James Cameron’s upcoming Avatar sequel. Those who saw the original movie, of course, will remember that her character Grace Augustine was killed. “Don’t worry, I will be back,” Weaver said of the sequel. “James Cameron tells me that no one ever dies in science fiction. He’s told me the stories for the next two movies and I have to say that they’re absolutely wonderful and there’s a real treat in store.” No one can say at this point how her character will return, but since the original Avatar did include supernatural elements, it’s possible that Weaver’s character could appear as a ghost of some sort.