Rian Johnson, who wrote and directed Knives Out and Glass Onion: A Knives Out Mystery, will also write and direct the third film.
"I’ve never really been interested in doing sequels, but this, the idea of doing more of these with Daniel as his character, is not sequels," Johnson explained to Uproxx. “It’s just what Agatha Christie did. It’s just coming up with a whole new mystery, a whole new location, all new cast, whole new mechanics of the appeal of a mystery and everything. It’d be a blast."
After the Thanksgiving premiere of the second film, Johnson shared he's ready to begin work on the third. "It’s interesting," he told Deadline. "We structured the [Netflix deal] so that if I wanted to do something else next, I could. And I think everybody assumed I’d have a couple other random ideas — unrelated projects — that I’ve been kicking around. But, honestly, over the past couple of months, the most exciting creative thing to me right now is that third movie. And so, I think I’m going to hop right into it. Not because of a contractual obligation, but, genuinely, that’s the shiny object I find my nose pointed toward right now. [It’s] the idea of figuring out how it can be completely different from this one as well as the first one.”
In press for Glass Onion, Johnson teased that the third film would dive into Blanc's queerness, saying he's "sure it'll come into play" because it's a big part of his character.
"If you watch the movie, I think it’s made explicit. In terms of exploring it, I mean, maybe, but with these movies, I mean, they’re not really about the detective’s sexuality. [But] it’s baked into the genre a little bit [when] the detective is kind of set outside the realm of the human drama that’s going on with the rest of the suspects, so I’m sure it’ll come into play because it’s a big part of who he is, obviously. It’s just a fact about his character."
Just as the cast and mystery (with the exception of Daniel Craig's Blanc) completely changed in Glass Onion, the third Knives Out will almost definitely feature an entirely new cast and no continuous mystery.
Yet, we know it will premiere on Netflix; the streamer acquired the rights to Knives Out 2 and Knives Out 3 in a $450 million deal in March 2021.