I think that a Great story towrds GB3 would be:
If you have seen the episode of RGB Halloween 1 1/2, i think thats the name, The one with Samhain in.
Anyways the Ghostbuster jouniors make an apperance and try to help the Ghostbusters to catch Samhain.They have there own little Motor car with the No ghost sign all over and the Gb uniforms. I think that if GB3 did ever get made then the Gb Jns should take over the business if the story came down to that. It would be great to see them all grown up and actually living their Child-hood dreams of Busting Ghosts.

I agree. The JR. GB's grown up would be pretty cool. I know there's gonna be a slew of posts against this, cause the JR. GB's were not liked by all. But I thought they were neat. It gave me hope as a kid to be a real GB. I mean, if those kids could be ghostbusters, so could I…if only I were a cartoon!