So I just read today that they are filming a sequel to Donnie Darko. Here's a description.
On May 18, 2008, filming began for S. Darko, the sequel to Donnie Darko. UK-based sales company Velvet Octopus will be launching sales for the film in Cannes, with Fox already having acquired North American rights. S. Darko will be set seven years after the end of Donnie Darko; Donnie's little sister Samantha and her best friend Corey are now 18 and on a roadtrip to Los Angeles when they are plagued by bizarre visions. Daveigh Chase, who portrayed Samantha Darko in Donnie Darko, will be reprising her role. The cast will also include Ed Westwick, Briana Evigan, and Justin Chatwin. Chris Fisher will direct the film.
I liked the original Donnie Darko a lot. I'm not sure what they could do with a sequel. I'll definitely tune in because I loved the first one.