Here's a statement released by the author on his official website.
"About the graphic novel, it's true. Chelsea Cain has been introducing me to artists and creators from Marvel, DC and Dark Horse, and they're walking me through the process. It will likely be a series of books that update the story ten years after the seeming end of Tyler Durden. Nowadays, Tyler is telling the story, lurking inside Jack, and ready to launch a come-back. Jack is oblivious. Marla is bored. Their marriage has run aground on the rocky coastline of middle-aged suburban boredom. It's only when their little boy disappears, kidnapped by Tyler, that Jack is dragged back into the world of Mayhem.
It will, of course, be dark and messy. Due to contract obligations it can't come to light for a while. Next year is "Beautiful You," followed by the story collection. But since the Fight Club sequel will appear serialized in graphic form, my book publisher might allow me to launch it earlier than 2015.
Feel free to release any or all of this information. We haven't started to court a specific publisher, not until I hammer out the complete story."
Of course, there isn't a movie deal in place for a Fight Club sequel yet, but, given the popularity of the 1999 original film, don't be surprised if a studio tries to pick up the rights before graphic novel even gets off the ground.