In a recent episode of AXS TV’s The Big Interview with Dan Rather, Aykroyd teased fans with the news that a new Ghostbusters is "being written right now."
He mentions there is a "possibility of a reunion with the three remaining Ghostbusters", which would include himself, Murray, and Hudson. When asked about Bill Murray specifically, he adds, "I think Billy will come. The story's so good. Even if he plays a ghost."