Chuck Palahniuk is talking about writing a Fight Club sequel, even though he's not supposed to do that

As the author elaborates on his website, “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.” (A world that’s been existing for 10 years without him, apparently, Mayhem having turned the anarchic destruction of civilization into a remarkably steady pastime. "Don't forget that next week is the bombing of a Bank Of America, and our annual spaghetti dinner.")

Palahniuk promises this will all be very “dark and messy,” as any story would have to be that confusingly resumes Jack’s journey by having him just get married and move to the suburbs, where the things you own end up being registered as part of the home inventory recommended by your insurance. Or perhaps Palahniuk is just looking to destroy something beautiful, potentially wrecking Fight Club by tacking on an unnecessary continuation, all as just another lesson in our learning to let go.