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:

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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.

Stranger Things Season 5 Promises Fast-Paced Thrills

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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

He continued:

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