Netflix officially renewed Stranger Things for season three on December 1, 2017, but didn't confirm either the episode count or when exactly the show would return.
Cindy Holland, Netflix's VP of original content, explained that the delay has been because Stranger Things is a "handcrafted show". "They want to deliver something bigger and better than what they did last year and so they really want to take the time to get it right." Holland added that “more special effects” is one of the main reasons for season three’s prolonged production – but it’ll be “worth the wait”.
It’ll be an eight or nine-episode season, however, fans will have to wait until mid next year for the third season as filming will only wrap up in November this year. Judging by the comments by The Duffer Brothers to Vulture, they’re “thinking it will be a four-season thing and then out”.
According to reports, the stars will get paid a whole lot more for Stranger Things season 3. Winona Ryder and David Harbour will be paid $350,000 an episode and Millie Bobby Brown $300,000. The child stars Finn Wolfhard, Gaten Matarazzo, Caleb McLaughlin and Noah Schnapp will all get $250,000 per episode, while Natalia Dyer, Charlie Heaton and Joe Keery will pocket roughly $150,000 each.
Here's an ambiguous teaser tweeted from Stranger Things Twitter page:
Ahoy! Something is coming... to Hawkins, Indiana! pic.twitter.com/BI4wFRVzvB— Stranger Things (@Stranger_Things) July 16, 2018