The Lost creator wrote and directed the 2009 rebooted version of the sci-fi film.
He told Collider: "I just want to make sure that we're putting the story and the characters, the cast and the crew, and most importantly the audience, first, before we start talking about exactly which locations we're going to be shooting at and what the wardrobe and visual effects budgets are.
"It just seems important that we get the important stuff right first."
Abrams added: "Once you say, 'We're ready to go, but we don't have a finished script yet', or, 'I'm directing the thing and here's the release date, but we don't have a finished script', what starts to happen is that you're suddenly in production on a movie where you're thinking, 'Oh my God, we weren't really ready!'"
The director has previously spoken out about his fear of rushing the sequel to screen, with writer Damon Lindelof saying he felt pressured to write a good follow-up.
Abrams - whose Super 8 is out this week - recently praised producer Steven Spielberg for his ability to work on several different projects at once.
Watch Digital Spy's Super 8 interview with JJ Abrams below: