I'm certainly a hardcore Ghostbusters fan and here's my take.
If it's a true sequel, an honest to god this is what we wanted the third film to be movie then I want to see it.
If it's a we need ot make this film in order to pass things on as a franchise then I am afraid I don't want it to happen because it'll ruin the franchise. Already people talking about seth rogen or ben stiller being ghostbusters makes me sick.
I needs to be a ghostbusters movie not an "insert actor name" film or a ghostbusters presents film. Big big names need not apply here. Smaller names or unknowns would be better.
I'd much much much rather it be a final film and not a gateway to multiple crappy and cheap sequels. If it does get passed down there needs to be quality control.