Good news: Dan Aykroyd is very confident that there will be a Ghostbusters 3 very soon. He told the Metro:
We’ve got a brilliant new writer on it and we’ll be passing the torch on to a new generation. We’re working on it to make it just right to satisfy our fans. I’m confident we’ll be in production in the next year.
It’s sad but we’re passing it on to a new generation. Ghostbusters 3 can be a successful movie without Bill. My preference would be to have him involved but at this point he doesn’t seem to be coming and we have to move on. It’s time to make the third one.