Just a few hours ago, Netflix officially announced that Stranger Things has been renewed for Season 2. Now, more details have been revealed about the returning series. This latest look arrives with a teaser trailer that confirms the time period and all nine episode titles. Creators and writers of the show Matt and Ross Duffer will return, as will the entire original cast.

Stranger Things was a breakout summer hit for Netflix, and soon became a phenomenon after debuting in July. The show will return in 2017, extending its episode run from 8 to 9 episodes. The Duffer Brothers revealed some new details to Entertainment Weekly, including the fact that most of the original cast will return. And there will even be a few new faces added to the mix. The story will continue to be set in Hawkins, Indiana one year after the events that took place in Season 1. The time period will jump to 1984. While some speculated that Stranger Things might be an anthology series, Ross Duffer explains that was never the case.

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"I don't think we ever thought anthology. I think we talked like a larger time jump where the kids are older now and it's a different decade. That's something we batted around from the very beginning. But for us, there's still more story here [in the 1980s], there's still things that are unresolved. We don't know about Eleven. We leave that up in the air."

The entire main cast will all be back, including Winona Ryder, David Harbour, Finn Wolfhard, Gaten Matarazzo, Caleb McLaughlin, Natalia Dyer, and Charlie Heaton. Though producers are staying mum about Millie Bobby Brown's return as Eleven and Matthew Modine as her 'Papa', as their fate was left ambiguous in Season 1. Matt Duffer does confirm that there will be four new characters added to the mix, though they have yet to be cast and are not being revealed at this time. Says Duffer.

"There's going to be a lot of new and interesting dynamics that we didn't see in season 1."

The Season 2 episodes include Madmax, The Boy Who Came Back To Life, The Pumpkin Patch, The Palace, The Storm, The Pollywog, The Secret Cabin, The Brain and The Lost Brother. Some are already speculating that the episode The Lost Brother is about one of the new characters. The Duffer Brothers aren't looking at these new episodes as 'another season'. Instead, they are approaching it as though it were a blockbuster sequel. Matt Duffer explains.

"I know movie sequels get a lot of s-, but the ones we look up to aspire to pivot and do something different. There's Temple of Doom, Aliens, Terminator 2. I guess a lot of this is James Cameron. But he's brilliant. And I think one of the reasons his sequels are as successful as they are is he makes them feel very different without losing what we loved about the original. So I think we kinda looked to him and what he does and tried to capture a little bit of the magic of his work."

It has also been revealed that Hawkins won't be the only setting in Season 2. The cast will venture outside the walls of the city. And the opening scene in the first new episode entitled Mad Max all not take place in Hawkins. Though rest assured, the action will return to The Upside Down. And this alternate dimension will be further explored. Matt Duffer says this.

"We kinda just peeled back the curtain and revealed a tiny bit of the Upside Down. So we definitely want to explore a little bit more. There's a lot we don't know about the Upside Down at the end of season 1."

Ross Duffer continues.

"We obviously have this gate to another dimension, which is still very much open in the town of Hawkins. And a lot of questions there in terms of, if the Monster is dead, was it a singular monster? What else could be out there? We really don't go in there much until they go in to find Will at the end. So we've opened up this doorway, and to us it's exciting to talk about, like, what else is behind there? There's a lot more mystery there to be solved."

While Stranger Things Season 2 will be one hour longer than Season 1, the Duffers were worried that the show could get 'too big'. They didn't want to overstep what they had created. But feel safe in expanding the universe just a little. Says Matt about adding on an extra 60 minutes.

"We're letting the story dictate it. I think if it gets any longer, it gets unwieldy for us. We want to make sure it's manageable and we want to be able to tell a movie-like story where it's never treading water. We want it to have the same feel and pacing as season 1. I think if we extend it too much, it will have a very different feel."

These 9 new episodes will be produced by 21 Laps for Netflix. Executive Producers Shawn Levy, Dan Cohen and the Duffer Brothers will all return for the second season. At this time, no official cast announcement has been made. And an exact premiere date has not been announced. We can expect to return to the Upside-Down next summer. Until then, we have the first teaser trailer, which shows off the episode titles and setting for this TV sequel.