According to a post from Toy News International, MasterReplicas will not be making any props from the Ghostbusters movies. Their original plans were to make a 1:1 scale Ghost Trap and a 1:1 scale Proton Pack, but according to CSTom on MR’s Ghostbuster forums,
we cannot afford to give Ghostbusters prop replicas the justice and treatment they deserve and I apologize for any frustration or disappointment this will cause any fans.
A shame; anything that would put out more Ghostbusters product would have been cool.