Spin-off hints

The Duffer Brothers are revealing some hints about their stranger things spin-off, which, should be noted, is not yet confirmed or in production:

“There's a version of it developing in parallel [to season 5], but they would never shoot it parallel. I think actually we're going to start delving into that soon as we're winding down and finishing these visual effects, Matt and I are going to start getting into it."

https://ew.com/tv/duffer-brothers-stranger-things-spinoff-different-than-anyone-is-expecting/

Of course we don’t know what’s coming in season 5, but it means I’ll be watching out more…

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