I am not clamoring for a remake but has anyone wondered about Cujo as a miniseries? Maybe three episodes. That could be challenging because the events in the book build up to one single event, but didn't King once say that as he was writing it he envisioned it as a TV movie-of-the-week? Although, this is the book he says he doesn't remember writing.
(To accomplish this I think Charity, Joe and Brett would need more development than they were given in the movie. In the novel we are told about Brett getting Cujo as a puppy, the Camber's pressure-cooker marriage, and Charity's time spent with her sister after her lottery win.)