The big reveal at the end of the fourth season was shown to be a Demogorgon had been captured by the Russians. At first, it looked the Russians had found a Demodog until it stood on its hind legs revealing the true form of the creature. David Harbour added to Total Film: "I've known from the get-go... I've had those discussions with them [the Duffer brothers] from the very first season. We were always interested in that idea of the Gandalf resurrection – Gandalf the Grey who fights the Balrog and then becomes Gandalf the White." What happened in Stranger Things season three? John Snow, known for his work on Spider-Man 2 & 3 is listed as being part of the art direction for season 4. Speaking in an interview with Collider, Shawn Levy commented on the filming delays earlier in 2020 saying:

Given the unprecedented length, and to get it to you as soon as possible, Season 4 will be released in two volumes. Volume One will release on May 27th; Volume Two will release five weeks later on July 1st. Just before Christmas 2020, shots of the team filming in the woods with “upside-down” decor dominate the pictures. It’s going to be epic. There’s lots of great surprises and all your favorite people are in it, It’s going to be so good. It’s so epic. I’ve gotten to read through almost eight scripts now, it’s pretty awesome. I don’t know how many we’re going to get.”In October 2020, we also learned that Dr. Brenner (last seen in season 2) will be returning for season 4 of the series. We’ve yet to hear this officially so stand by. Also in October, reports from the set of Stranger Things season 4 suggests that Levon Thurman-Hawke will be joining or at least appearing in season 4. There are still many more exciting stories to tell within the world of Stranger Things; new mysteries, new adventures, new unexpected heroes. But first we hope that you stay with us as we finish this tale of a powerful girl named Eleven and her brave friends, of a broken police chief and a ferocious mom, of a small town called Hawkins and an alternate dimension known only as the Upside Down. As always, we are grateful for your patience and support. In the second season, we learned that Eleven wasn’t the only experiment to escape the Department of Energy. Eight was also able to escape and she made it her mission to take down the people related to the experiments. Like Eleven, Eight also exhibited powers of her own. Instead of telekinetic abilities like Eleven’s, Eight could cast illusions, become invisible through her illusions and also clairvoyance. The fourth season will also be receiving eight episodes like the first and third seasons. However, in the above picture from the Writers Room, there appear to be nine scripts present. Stranger Things 4 Volume 1 premieres on Netflix globally on May 27th, 2022 and Volume 2 premieres July 1st, 2022.

In a letter penned by Matt and Ross Duffer they outlined why they’ve split season 4 and the decision to end the show after 5 season. How they came to capture a Demogorgon is unclear but perhaps they were able to find one of the spawns similar to Dustin’s pet D’Artagnan in season two. This would give pause to reason that the Demodogs are in fact the juvenile or puppy stage of the Demogorgon. On February 17th, we finally got the release date for season 4 of Stranger Things alongside a batch of new posters.We also know Stranger Things is heading to New Mexico for season 4. We got confirmation in October 2020 that that’s currently due to happen now in December 2020courtesy of ProductionWeekly. Hiro Koda (who we recently snagged an interview with) who serves as the stunt co-ordinator for Stranger Things said the following: I think we’ve clearly implied there are other numbers, and I can’t imagine that the world will only ever know Eleven and Eight”

The Roblox Watch Party will begin at 11am PT and will see Netflix welcoming fans into its Stranger Things world on Roblox. In the world, fans will be able to watch the first episode of Stranger Things and "interact with the immersive world of Hawkins like never before." If interested, fans can visit www.roblox.com/strangerthings for more.Seven years ago, we planned out the complete story arc for Stranger Things. At the time, we predicted the story would last four to five seasons. It proved too large to tell in four, but — as you’ll soon see for yourselves — we are now hurtling toward our finale. Season 4 will be the penultimate season; season 5 will be the last. Several cast members and crew members have been speaking about season 4 so here’s a roundup of what they’ve been saying. I’ll just say the pandemic definitely massively delayed shooting and therefore the launch of our current Season 4, date still TBD. But it impacted very positively by allowing the Duffer brothers, for the first time ever, to write the entire season before we shoot it and to have time to rewrite in a way that they rarely had before so the quality of these screenplays are exceptional, maybe better than ever.” In a letter penned by Matt and Ross they tell us that season 4 is going to be a bumper season and therefore released in two halves. We don’t actually know. I think, you know, four to five seasons is likely where we’ll end up, but who knows? I mean, none of this official, and we know where we want to go. We’re trying to figure out still how long it’ll take to get there, so we’ll see.”