If you were wondering what would happen with Ghostbusters III after the the passing of Harold Ramis, you may or may not be happy to hear that the the project is not dead. Sony Pictures plans on moving forward with it, they will just have to rework the current script which was written by Lee Eisenberg and Gene Stupnitsky. So there's no Bill Murray and no Harold Ramis… I seriously don't see the point in even making the movie at this point.
According to THR, director Ivan Reitman is scheduled to meet with the Sony production team in the next couple of days to assess how to move forward on the project that is in active development.
The site goes on to say that Ramis "was involved in Ghostbusters III only minimally." He also held "a first-dollar gross stake in the third film along with Reitman, Aykroyd and Murray -- a position that will revert to his estate." As of right now, no one has even signed anything, but apparently the principals would take break-even cuts in order to get the film off the ground.
I really hope they have an incredibly amazing script, because it has to be if they are actually going to make this movie.