It is not known when the season will air but it is likely to be next year as production was shutdown due to the Coronavirus pandemic.
Netflix also remains cagey about how things will shake out for the Byrdes in the brief, official synopsis for Ozark season 4: "The new season will mark the final chapter in the Byrde family's journey from suburban Chicago life to their criminal enterprise in the Ozarks".
Ozark's first three seasons had 10 episodes each.
A part of me is so bummed the show is coming to an end but the other part of me is happy they're not going to just milk the show for all of its worth and keep it going when it's not creatively feasible to do so.
Mundy will return as showrunner, writer and executive producer and will reunite with Jason Bateman as the creative forces behind both parts of the new season. "It's been such a great adventure for all of us-both on screen and off-so we're thrilled to get the chance to bring it home in the most fulfilling way possible", Mundy said in a statement.
The show, generally speaking, centers on a financial advisor named Marty Byrde (Jason Bateman) who becomes a launderer for a Mexican drug cartel.
Lisa Emery, Charlie Tahan, Skylar Gaertner, Sofia Hublitz, Julia Garner, and Laura Linney are all set to return alongside Bateman as well. "Ozark will conclude with an expanded 14-episode final season", a recent post on the show's Instagram page reads. Linney will serve as a co-executive producer on the final season.
Since its debut in 2017, Ozark has earned 14 Emmy nominations.
"'Ozark' is a gripping drama that has captivated audiences all around the world and garnered tremendous critical acclaim", said Cindy Holland, VP of Original Content at Netflix. Ozark won two Emmys in 2019 for Bateman's direction and Julia Garner's supporting performance with the show racking up 14 nominations to date.