I love this script I was thinking about that idea about how Ghostbusters III should be. But here's another Idea of mine the Ghostbusters are training some young people to be Ghostbusters Eduardo, Kylie, Garrett, and Roland The youngsters from the Extreme Ghostbusters One night before Halloween night something strange happens and the Ghost of Samheine is accedently released.Now it's up for the Ghostbusters and the future Ghostbusters to join forces and stop Samheine before he creates more Havoc on Halloween night.

And my title for this movie should be Ghostbusters III The Rise of Samheine.

Mod Edit: I edited the title so anyone with Mod powers didn't think this was a duplicate of your other ‘Ghostbusters III’ topic. - Kingpin

The plots similar to M.Scott's “Ghostbusters 4” script, where the Ghostbusters and recently trained Extreme Ghostbusters have to combat Samhain (it was written as a tie in to the first two movies in addition to his own “Ghostbusters 3”.

The only problem I see with the subtitle is that it's a bit similar to Rise of the Silver Surfer.