Dan Aykroyd has, for years, been hard at work, attempting to bring Ghostbusters 3 to the big screen. There have been quite a few stops and starts, but most recently plans seemed to be for the sequel to shoot in the fall of 2013. Today, Aykroyd tells Esquire that while he thinks a production start is closer than ever, the film still isn't a sure thing.

"[B]ecause of the ever-shifting sands and nature of the motion-picture business, I will just say that hopefully, at some point, it will be morphing into what is known in the business as a 'production number XP39789,'" the actor explains. "Then I will begin to rent cars, get hotel rooms, and bill for writing. But that point hasn't come. All my work has been gratis to this point, as Ivan [Reitman]'s has, and I'm hoping that I can get that production number set up in L.A. and help everyone bring the movie to fruition, as the originator and creator of the concept."

Aykroyd goes on to reveal that, if the film does happen, a third adventure most likely won't be the end of the Ghostbusters as the current draft leads "organically" into a fourth film. His own plans would see him stepping away from the franchise as an actor but remaining aboard as a writer. As far as ideas go, he'd like to see a new team travel to Hell itself.

"Man-hell-ttan," he explains, "and the Ghostbusters in Hell would be so solid. But we gotta get maybe one or two made before that."

You can read the full interview at Esquire by clicking here.