The third instalment in the comedy franchise is to go in front of cameras in summer 2013 with director Ivan Reitman back at the helm, says Deadline.
As previously reported, Bill Murray is not expected to reprise his role as Peter Venkman.
"No, I can tell you he won't be involved," Dan Aykroyd said in August. "It's sad but we're passing it on to a new generation. Ghostbusters 3 can be a successful movie without Bill."
Etan Cohen (Tropic Thunder) is currently writing the script for Ghostbusters 3.
If the sequel goes into production in 2013 to make a 2014 release, its cinema debut will coincide with the 30th anniversary of the original Ghostbusters from 1984.
Photo gallery - 25 greatest movies of the 1980s:

Star Wars: Episode V - The Empire Strikes Back (1980)
Overcoming the middle-child syndrome that's felled many a second instalment (looking at you, The Two Towers) Empire's combination of high emotional stakes, snatches of shrewd dialogue and a newly dark tone elevated it far above its franchise. It's the best of the Star Wars films, and then some.
Overcoming the middle-child syndrome that's felled many a second instalment (looking at you, The Two Towers) Empire's combination of high emotional stakes, snatches of shrewd dialogue and a newly dark tone elevated it far above its franchise. It's the best of the Star Wars films, and then some.
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