ComingSoon.net has learned that Tropic Thunder and Men in Black 3 screenwriter Etan Cohen has signed on to rewrite Ghostbusters 3 . The news arrives just a week after Dan Aykroyd reported that the project had added new writing talent.

Lee Eisenberg and Gene Stupnitsky wrote the previous draft, which is expected to bring back together the original cast of Harold Ramis, Bill Murray, Dan Aykroyd and Ernie Hudson, although Murray has been a notorious holdout, not wanting to participate until the script is perfect.

Aykroyd previously confirmed reports that the plot will revolve around a new generation of Ghostbusters and hinted at the states of his and Ramis' characters.

"My character, Ray, is now blind in one eye and can't drive the cadillac," he said, "He's got a bad knee and can't carry the packs... Egon is too large to get into the harness. We need young blood and that's the promise. We're gonna hand it to a new generation."