Everything you need to know about the inevitable 'It' sequel

Stephen King's It is no slouch of a novel; at 1,138 pages, it takes its time with the horrific story of what happened in Derry, Maine to a group of kids haunted by the murderous Pennywise.

After an exceptional weekend at the box office, the film adaptation of It is primed for a sequel, especially since the movie only covers half of the original book.

So what's in store for part 2? Let's uncover our eyes and look ahead...

For starters, despite the sequel taking place in the present day -- 27 years after defeating Pennywise -- the prodigious young cast won't be entirely out of the picture. Director Andy Muschietti told Entertainment Weekly that we may still see the Losers Club in flashbacks.

“On the second movie, that dialogue between timelines will be more present,” he said. “If we’re telling the story of adults, we are going to have flashbacks that take us back to the '80s and inform the story in the present day.”

"It’s also important for Andy to get flashbacks with the kids, who are growing very fast,” the director's sister and producing partner Barbara Muschietti told EW. “They are an important component in the next film.”

The main thing holding them back is that, while the film is in development, it hasn't technically gotten the greenlight from Warner Bros. and New Line -- but that could (and should) happen any day now.

Meanwhile, the filmmakers want to alter Mike Hanlon's (Chosen Jacobs) storyline for the sequel. He's supposed to be living a quiet life as a librarian, but Muschietti doesn't want to shy away from the character's obvious trauma and the toll of staying in Derry -- he envisions future Mike as a "librarian junkie."

“When the second movie starts, he’s a wreck,” Muschietti said.