What will Stranger Things Season 3 be about?

It'll be a sitcom about a single police chief raising his newly adopted, telekinetic daughter who loves Eggos. It will star Finn Wolfhard as the girl's romantic and altruistic but highly sensitive boyfriend. It will also star Winona Ryder as the man's love interest, who is raising two boys on her own, one of whom was trapped in the upside down and later possessed by a shadow monster. In a heartwarming turn of events, this little boy and his creepy but lovable photographer brother will get a new step-sibling with special powers. And Steve will have moved onto better things with his and Dustin's newly found friendship.

Yeah, probably. The show's doing pretty well right now, so it's highly unlikely there won't be a season 3.