With more not-really-news on GB3 than you can shake a stick at, wading through it all can be a google alert from hell.
Ivan Reitman has been talking shop, reconfirming his involvement, dropping hints that the new film has a role for Sigourney Weaver (hooray!) and will take place after a now-defuct Ghostbusters must reopen for business. The script is in it's final stages, the rights holders have approved the basic story and Sony needs to make a call now on whether the project is go.
Meanwhile, Dan Aykroyd was on a Ghostbusters-reference-heavy episode of Family Guy last night!

Via, every entertainment source on the interweb.