Zebulon Dak wrote:This makes me think, or at least gives me a little hope, that they had more story already planned or thought about. Which increases the likelihood that it'll live up to season one, IMO.
The Duffer Brothers have said in interviews that season one was based off a roughly 30 page document they had created about the Upside Down. It's basically their source material and they only used a portion of it, which is why they can progress so quickly. Also, the words/titles that show up in the trailer are figured to be the names of each episode/chapter in season two.
Edit: Here is the original story I had read on it: http://variety.com/2016/tv/news/strange ... 201816664/
And here are the two Q&As that give us the best info
Do you see the government or science conspiracy angle as a long-term mystery for the show?
Ross: There’s a lot there we don’t know or understand. Even with the Upside Down, we have a 30-page document that is pretty intricate in terms of what it all means, and where this monster actually came from, and why aren’t there more monsters — we have all this stuff that we just didn’t have time for, or we didn’t feel like we needed to get into in season one, because of the main tension of Will. We have that whole other world that we haven’t fully explored in this season, and that was very purposeful.
As you head into future seasons, have you thought about how much of that 30-page document you want to reveal and explore?
Ross: We leave these dangling threads at the end. If people respond to this show and we get to continue this story — we had those initial discussions of where we might go with it. If there was going to be a season two, we would reveal more of that 30 page document, but we’d still want to keep it from the point of view of our original characters.