The official trailer for Doctor Sleep is a followup of events that took place with the kid from The Shining.
According to The Collider:
“Doctor Sleep picks up with Danny Torrance forty years after the events of The Shining, which means Flanagan’s film has to find a way to honor King’s novel, Stanley Kubrick’s iconic 1980 film adaptation, and navigate the bountiful differences between the iconography of the two.”
Doctor Sleep is set to hit the big screen November 8th, 2019.