According to a Netflix press release, Stranger Things Season 2 is officially in the works, set to debut sometime in 2017. Matt and Ross Duffer are back, though there's no mention of any cast returning. The streaming service announced nine new episodes, and dropped a moody teaser filled with hints at where the next season will go. "Set in the Fall of 1984," goes the trailer, "the adventure continues." Not a huge help, but the Duffers also name the title of each episode in the new season:
"The Boy Who Came Back to Life"
"The Pumpkin Patch"
"The Secret Cabin"
"The Lost Brother"