[The coronavirus pandemic] has given us time to look ahead, figure out what is best for the show.
“Season 4 won’t be the end,” Ross Duffer told The Hollywood Reporter.
Starting to fill that out gave us a better idea of how long we need to tell that story.”
The series was created by Matt and Sean Duffer, who also serve as executive producers and directors along with Shawn Levy (who also directs), Dan Cohen and Iain Patterson.