Lily Rabe returned to American Horror Story earlier this week, playing real-life serial killer Aileen Wuornos and at the moment, is officially signed up to star only in the traditional two-part Halloween episode of the series. But Rabe fans have speculated that she could be in the show longer than showrunners Ryan Murphy and Brad Falchuk have initially let on, something that could well be accurate given her coy answer in a recent interview with Screen Crush.

"I can't really say, I don't think," she replied when asked whether fans can expect to see more of her or not in Hotel. "I don't know, yeah. I guess I can't." Which basically means she will be coming back in AHS-world, right? We can hope anyway.

Another theory that has emerged since Murphy announced Rabe would appear in the series is that she could reprise her role as Nora Montgomery, from season one's Murder House. An idea supported by Murphy's constant comments about how all of the season's will eventually link and by recent images that saw Lady Gaga filming at the Murder House location.

"Mm. I do know something about that. I mean, I know something about that theory. I can't say anything about it, no. I loved Nora," Rabe teased. Looks like another "definitely, maybe" to us...

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If she did return as a completely different character than the one she's just debuted as, there's one thing for certain: it wouldn't shock Rabe, whose used to the crazy things that can happen when it comes to American Horror Story from season-to-season. But while she might not be all that surprised by what's required of her each time round, she's never unafraid of the show's dark content.

"Surprise, no. Scare, yes. You sort of stop trying to think of the things that will never happen on the show because you'll just make yourself into a fool if you try to get ahead of it or predict," she told the publication. "Everything is possible. I have found, at least for me, you just get in the world of it.

It is kind of amazing where you have these moments where you're either shooting something and you think: 'Oh my god, if five or six years ago I was reading a script where I was going to have to do this, I would be, like, under my bed with a pillow over my head so terrified.'

"But then yeah, you just get to the point where you're like: 'Oh yeah, uh huh.' It doesn't mean the experience of doing it though – every time that you're doing these things it can be incredibly disturbing or harrowing, or exhilarating, or all the above. It's like a roller coaster."

Catch up on series 1-4 of American Horror Story available on DVD boxset now.