Stopping by Entertainment Weekly's Sirius satellite radio program, director George Miller touched on the popularity of Charlize Theron's Furiosa and whether he'll revisit the character in future Mad Max films. Said Miller, " Yes, I have [zeroed in on the storyline for the sequel]. And certainly [I'm] having conversations about it [with the studio]. But I’m not sure if it’s the very next movie I want to do. I’ve got something a bit smaller before we go back out into the wasteland — something that’s contemporary that we can get through fairly quickly. And something with not too much technical difficulty. Something more performance-based and so on, just to clear the exhaust."
So it appears there will be a bit of a wait for the next Mad Max film as Miller is looking to direct a smaller feature in his next movie. As far as Furiosa is concerned, Miller added, "Yeah, she’s a pretty compelling character so it would be great to tell her story. Her backstory is really interesting. We only allude to it in this movie because this movie is on the run; people don’t have much time for recreational talk. But you pick up, you have a sense of her having gone through stuff. That’s what the film is trying to do. You’re trying to put a lot of iceberg under the tip, I like saying.One of the things that’s really gratifying, people are reading the film more than just the surface — the events of the movie, and just picking up a lot of stuff underneath it, which is very deliberate......So in many ways, the audience is picking up a lot about Furiosa — or enough to intrigue. And she’s got an interesting story."
Previously, Miller stated that he was developing two ideas for a Mad Max: Fury Road sequel but would only commit to doing one of them. It sounds as if he's zeroed in on the idea he wants to explore in the sequel but Furiosa fans shouldn't expect her to appear. Miller previously stated that Furiosa didn't appear in either of his two ideas for the sequel but that she does have an "interaction" with Max. So perhaps we only hear Furiosa's voice in the sequel but she doesn't actually appear? Nevertheless, Miller's comments would seem to indicate that he's extremely interested in the character so perhaps there will be a Furiosa spin-off that tells her origin story.