According to the horror or should I say SCREAM website, SCREAM-TRILOGY.NET, they are reporting that through a series of Tweets Kevin Williamson has stated he is working on the SCREAM 5 script.
Many of us know that Kevin tweets daily and that he is starting a new Serial Killer show that starts next year. When Kevin was writing Scream 4 he tweeted about it and if you remember some of his tweets it sounds very similar to what he is tweeting about now (very Scream-ish).
His recent tweets:
Source: http://scream-trilogy.net/2011/11/kevin ... right-now/