Season 4 will be released in two parts, containing 10 episodes each. No release date has been announced for Part 2, and we can't accurately predict when Part 2 will be released at this point. Looking at trends, Netflix released Stranger Things Season 4 in two parts, about a month apart from each other. But Netflix also released Lucifer Season 5 in two parts, eight months apart. And we're still waiting on a third part of Lupin, more than a year after Part 2 was released in June 2021. With that in mind, Part 2 could come out sometime between December 2022 to January 2046.