I saw a video on Comicbookmovie.com giving us an update on Ghostbusters 3. Unfortunately, at this time there is very little new information and as the article mentions fans are getting frustrated with the constant back and forth involved in getting this movie under production.
The only remaining factor before the movie is ready to be green lit is Bill Murray’s involvement. Bill is the only original actor out of the four Ghostbusters that has not come on board yet, due to his warnings that he will only agree to do the film if he approves the script.
The video features the Ghostbusters original director Ivan Reitman and Ashton Kutcher who is also set to star in the film.