NEW YORK (CNN/Money) - Wondering what happened to Harry Potter?

Don't worry. The fifth book the is just around the corner, its author, J.K. Rowling, told the Wall Street Journal.

That's not only good news for fans of the mystical series, it also cheers a vast business infrastructure led by publishers Bloomsbury Publishing PLC in Great Britain and Scholastic Inc. (SCHL: Research, Estimates) in the United States, two publicly traded companies whose profit and stock prices have benefited from the bespectacled youth's popularity.

AOL Time Warner Inc.'s (AOL: Research, Estimates) Warner Bros. film unit, which is releasing its second Harry Potter movie in November and owns the rights to two other books and options on future titles, also stands to benefit, the Journal reported. AOL Time Warner is the parent company of Time magazine, CNN and CNNMoney.com.

Rowling told the Journal that the fifth book's delay is due to exhaustion from her last book, the distractions of fame, the length of the manuscript and changes in her personal life. Rowling, who remarried last December and has a nine-year-old daughter, said she is four months pregnant.

Although Rowling declined to give a specific date for when she will submit the manuscript, she didn't dismiss a suggestion that the story could be submitted within three to six months. "When will I hand it in? I don't want to say, but it won't be very long," she told the Journal.

Once submitted and thoroughly edited, a finished book could be produced in as little as two months, according to the paper.

Rowling's four previous Potter books have sold an estimated 175 million copies worldwide in hard and soft cover, and published in at least 43 languages. Many have speculated that the fifth book is late because the first four Potter books were published every summer since 1997.

But Rowling said she never set a publication date for the fifth one, and put down rumors that she has struggled with writer's block.

"I needed to step off the one-book-a-year treadmill," she told the Journal. "I knew people would say that she's lost it. But that's the price you pay for doing what you need to do -- do good work and maintain quality."

Likewise, her publishers have worked through legal difficulties surrounding the Potter series. Scholastic and Warner Bros. received a summary judgment earlier this week that Rowling hadn't copied any material from children's author Nancy Souffer.

Her publishers also brush off speculation that they are disappointed not to have a new Harry Potter title to go into the second movie, "Harry Potter and the Chamber of Secrets," the Journal reported.

"We have the book that the movie is based on," Scholastic spokeswoman Judy Corman told the paper. The firm is publishing a mass-market version of it for $6.99 with a new cover aimed at older kids and adults.

Additionally, Scholastic plans to release a deluxe leatherbound edition of "Chamber" for $75, a boxed set of the first four hardcovers for $85 and a boxed paperback set for $31, all in time for the holidays.