Dan Aykroyd was in Boston promoting a new House of Blues. While answering questions for the Boston Globe, Ghostbusters 3 got brought up:

[Comment From Tom] Dan, I’m extremely excited for the HOB to be back in its birth-city!! I will be attending many shows. On a side note, and I’m sure you get these questions a lot, so I apologize in advance…Ghostbusters 3? I’ve heard that the writers of the Office are currently penning a script? How is this coming along, and should we look forward to this movie seeing the light of day? Thanks Dan!

Dan Aykroyd: Script is commenced early summer. Hope to be in production by late fall 2009

While this does not guarantee that the movie is going to happen or start shooting this Fall. These rumors have floated around for years… but it certainly feels a lot closer.