It’s available for pre-order on Amazon now for $24.99 with a May release date.
Stranger things themed of Dungeons & Dragons: embark on an exciting dungeon & Dragons adventure, hunt for the thessalhydra, "created" By the character Mike from the Netflix original series, stranger things
Great game for new dungeon & Dragons players: whether players are new to D&D, or looking for a new adventure, this stranger things themed roleplaying game includes everything a group needs to PLAY
Detailed rules, adventure book and game dice: The exciting adventure book and colorful rulebook contain tons of information on how to play the game, strategy, and tips for players to advance a character beyond the Fifth level, plus 6 Polyhedral dice so you're ready to play
Stranger things character sheets: play as a favorite stranger things character
Includes 2 Demogorgon figures: the game includes 2 Demogorgon figures, one that players can paint and customize.
UPDATE - over at Raging Owlbear, you can see a short Q&A with Stan! who wrote the adventures and who notes that "ST [Stranger Things] is set in 1983/84 and the FR [Forgotten Realms] boxed set wasn't published until 1987". Does this mean that the adventure is set in a different setting, such as Greyhawk?
So, WotC is making a new Starter Set that includes what is ostensibly Mike Wheeler's adventure from "Stranger Things," with the kid's characters as pretend and 80's style dice, available for preorder now.
I would expect so too. This is a niche product for fans of Stranger Things. And a nostalgia product designed to pull at the hearts of gamers of a certain age - look at how they've broken out the Metzner-era "red box" design again for it.
I'm hopeful, though, that leads to them putting out more limited edition starter sets in the future. I think if they put out a Starter Set themed to work with the MtG Ravnica setting book they put out, that wouldn't be a bad thing at all.
(And if they want my advice for a nostalgia product - put out a limited edition Starter Set with a 5e version of either Keep on the Borderlands or Village of Hommlet in it.)