Series creators the Duffer Brothers appeared on Josh Horowitz’s podcast Happy Sad Confused to dispel rumors about the spinoff.

Stranger Things creators Matt and Ross Duffer aren’t done with the blockbuster sci-fi series just yet. Although fans still have a fifth and final season to look forward to, Variety reports that the Duffer Brothers are already working to develop a spinoff to the pop culture phenomenon.

Though the details of new series are tightly under wraps—not even Netflix knows what the duo are planning for the spinoff yet—the Duffer Brothers want fans to know with no uncertainty that the spinoff series will be “1000% different.”

Matt and Ross recently appeared on the Happy Sad Confused podcast to dispel rumors that the upcoming spinoff will focus on characters from the main series, such as Millie Bobby Brown’s Eleven or Joe Keery’s Steve. Matt told host Josh Horowitz:

“It’s not following…I’ve read these rumors that there’s gonna be an Eleven spinoff. That there’s gonna be a Steve and Dustin spinoff or that it’s another number. That’s not interesting to me because we’ve done all that. We’ve spent I don’t know how many hours exploring all of that. So it’s very different.”

The duo went on to explain that the biggest connection between Stranger Things and the spinoff will be “storytelling sensibility” instead of bringing back characters from the original series.

“There is story that connects to the Stranger Things world, but it really is more about how we’re telling that story.”

Related: Stranger Things Season 5 Finds Will Byers Playing a Central Role, Say the Duffer Brothers

Stranger Things Season 5 Promises Fast-Paced Thrills

Though fans of Stranger Things might find themselves disappointed that familiar characters won’t be playing a major role in the spinoff, the Duffer Brothers promise an action-packed final season for our beloved gang. Matt told Horowitz

“The only reason we don’t expect it to be as long is because if you look at it, it’s almost a two-hour ramp-up before our kids really get drawn into the supernatural mystery. You get to know them, you get see them in their lives, what they’re struggling with, adapting to high school, and so forth. Steve’s trying to find a date, all of that. None of that obviously is going to be occurring in the first two episodes of [Season 5].”

He continued:

“For the first time ever, we don’t wrap up things at the end of [Season] 4, so it’s going to be moving. I don’t know that it’s going to be going 100 miles an hour at the start of 5, but it’s going to be moving pretty fast. Characters are already going to be in action. They’re already going to have a goal and a drive, and I think that’s going to carve out at least a couple hours and make this [final] season really feel different.”

The first four seasons of Stranger Things are now streaming on Netflix.