Aykroyd wrote a draft of “Ghostbusters II” that was completely different from what was produced, but Ramis and Aykroyd came up with the story idea and wrote what is today “Ghostbusters II”. They also then wrote a totally new script for “Ghostbusters III”, so technically there are at least 2 scripts that we have not seen for Ghostbusters movies, although apparently a lot of aspects from the “Ghostbusters III” script are being put into the video game. Let's not start talking as if “Ghostbusters” was a flash in the pan, and that these guys can't write another awesome movie, because that's just ignorant. Of course they can.
New fresh ideas are not negative. They can be very positive, and in all likelihood will be. If Apatow and Co. get involved, it will not be a raunchy sex comedy. That's not what they're about, and those that think they are don't pay attention to the storylines. They write funny, lighthearted comedies, that have likeable characters, with real stories. Yes, some have to do with sex and drugs, but that is not what “Ghostbusters” is, and it will never be allowed to become that as long as Aykroyd owns a part of the rights. He won't make a “Ghostbusters” movie just for the sake of making a “Ghostbusters” movie. He will make sure that we get a quality, proper sequel. The man loves “Ghostbusters” more than any of us, let's no forget that. He'll take care of the property, even if he doesn't write the 3rd movie.