According to Tom Hardy, those Mad Max: Fury Road sequels are still happening and currently in development. When asked by The Wrap if they were still happening he said, “Yeah I believe so!” He seems very excited about the franchise and about Fury Road he said, “It was so good, man.”
I remember hearing the stories about how he wasn't really happy and frustrated on the set of the film. It's good to know that he loved the final outcome and is ready to get back to work on the sequel, he's just waiting for the call.
“I don’t know when that starts, but I believe that’s in the books. There’s a couple of those floating around. I’m waiting for the call to come.”
We really haven't had any updates on these Mad Max sequels since the beginning of 2016. That's when director George Miller was clarifying some comments he made confirming that he will indeed be directing more Mad Max movies. From previous interviews with Miller, it sounds like Charlize Theron's Furiosa will be the focus of the sequel. He has said:
"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."
I'd love to see her team up with Mad Max again for another insane action-packed adventure in the wasteland. I can't wait to see what Miller has up his sleeve for this sequel!