There's been talk and rumors of this for a decade now. I know that for a long while Coscarelli was very positive about doing it, but the major snag seemed to be financing. His premise for a final film was much more global than what's been shown so far. To make the movie he wanted to film was more than he could find the money for. If we do eventually get another chapter, which seems more and more doubtful, it would likely be scaled back quite a bit from his original concept. Actually, I think part IV may have already been a concession to the direction he really wanted to go. Personally, I'd be okay with another film that was molded to the same scale of the previous ones.

Coscarelli and Reggie used to both do lots of conventions, would be great to eventually get to chat them up about any possible future. BTW welcome aboard ghoul.