NEW YORK —The “Fifty Shades” phenomenon may only get hotter this fall. Booksellers and publishers expect at least a dozen novels to benefit from E L James’ multimillion-selling erotic trilogy.

Just in the past two weeks, St. Martin’s Press took on Sara Fawkes’ self-published hit, “Anything He Wants (Dominated by the Billionaire),” and Gallery Books signed up Jennifer Probst’s “The Marriage Bargain.”

Cindy Hwang, executive editor at Berkley Books, says that thanks to “50 Shades” the door between erotica and mainstream fiction has been “kicked down completely.”

Still, Hwang adds, “there will be other kinds of books.”

New novels are coming from James Patterson, Mitch Albom, Michael Connelly, Dennis Lehane, John Grisham and Patricia Cornwell.

J.K. Rowling will find out how many of her adult “Harry Potter” fans are game for a book without wizards with “The Casual Vacancy.” Justin Cronin follows his best-selling “The Passage” with “The Twelve,” the second of a planned trilogy.

Ken Follett’s new novel, “Winter of the World,” is the second of his “Century” trilogy on war. The author explained during a recent interview that “Winter of the World,” a World War II story running nearly 1,000 pages, was an education for him.

“Before I started ‘Winter of the World,’ I didn’t know that the Nazis had killed thousands of handicapped people, that was completely new to me” he says. “World War II has been done so many times before that I needed to find something new. And I was so shocked and horrified by this program that as soon as I read about it I knew I had to use it.”

Tom Wolfe, who helped define 1980s New York in “The Bonfire of the Vanities,” has set the 650-page crime story “Back to Blood” in the contemporary “melting pot” of Miami, a sprawling canvas “full of hard cases who just won’t melt.”

Michael Chabon keeps it close to home with “Telegraph Avenue,” named for the famous stretch of his longtime residence, Berkeley, Calif.

Zadie Smith’s “NW” is another local story, set in northwest London, where the author grew up.

Salman Rushdie’s “Joseph Anton” is a memoir which for its title uses Rushdie’s alias when he was in hiding after Iran’s Ayatollah Khomeini called for his death for the alleged blasphemy of “The Satanic Verses.”

Chinua Achebe’s “There Was a Country” is a long-awaited memoir about the 1960s civil war in his native Nigeria.

Rushdie’s ally Christopher Hitchens died of cancer last December, but his name will appear on a handful of books.

Hitchens’ essays about his fatal illness will be published as “Mortality.” Martin Amis has dedicated “Lionel Asbo,” a dark farce set in London, to his close friend, as did Ian McEwan for his novel “Sweet Tooth.”

Meanwhile, two books will feature the late David Foster Wallace: Wallace’s essay collection “Both Flesh and Not” and D.T. Max’s biography “Every Love Story Is a Ghost Story.”

Patricia Bostelman, Barnes & Noble Inc.’s vice president of marketing, notes a wave of Kennedy books, including David Nasaw’s in-depth biography of patriarch Joseph P. Kennedy and White House tapes of John F. Kennedy, with daughter Caroline Kennedy providing an introduction.

More on the Kennedys may come from an estranged in-law, Arnold Schwarzenegger, and his memoir “Total Recall: My Unbelievably True Life Story.”