In a Deadline interview Bateman did for his brand new Netflix drama, Ozark, he said that they start production on the new season on the first week of August. Putting two and two together, I’m guessing that Bateman and the cast start filming on August 8.
In regards to this season, Bateman said that it will be a second act of a three-act story that started with the first load of Netflix episodes. “It was a story that Mitchell Hurwitz hatched after the Fox episodes,” he said. “There’s no plan yet to do a third act, but if this season is embraced that is definitely a possibility. One of the major stories is the death of Liza Minnelli’s character and who did it. It’s not a murder mystery per se, but that’s one of the central threads.”
The next season of Arrested Development is slated to premiere on Netflix in 2018.