The only thing we can do, if we reaaaaaly want that trilogy, (and if the industry agree to share their studios for the last part of what once was a blockbuster and a masterpiece that made lots influence) is to reach all the Ghostbusters fans in the world on the internet. We need a legal petition that will receive the name of each fans and each of them will include a small donnation. A dollar at least. If a fan wants to give more, good! It cost at least a million $ do a movie. A small budget can do a great final if the script is at its best. That script need to be the end of all paranormal activities and then, sadly but good for the humanity, the end of the need to have ghostbusters working in town. So a script where normal life return at the end of the movie.
After that, we send a letter to the movie industry. Saying: “Do the movie, we pay the fees and we want nothing in return. No copyright and no money in return from the boxoffice”. We dont need to have the original GB in it. If some of them wants to be a part of it as an old teacher in the company, great! But it can also be a thing from the past and new gbs are working in town.
Now the only question is: How we'll do it and who will manage the cash???
Maybe an account directly in the movie industry can secure the thing..,
What do you think? Lets do a website for that.