The Ghostbusters 3 film has been on the hold for a very long time. First they were having problems getting Bill Murray to jump on board and now they are on wait once again. In an article on THR they dropped the bomb that the film will not start until Fall at the earliest. Here is the full excerpt from the site:
Any decision on Ghostbusters III, the long-, long-gestating sequel, has been postponed until the end of March — this after Men in Black 3 writer Etan Cohen was paid a huge sum for a script. Shooting was to begin next summer but now couldn’t start before fall at the earliest.