NEW YORK — Tonight’s episode of “Project Runway” begins the drawn-out reveal of who will be the next winner of the popular fashion design competition: Jerell, Kenley, Korto or Leanne.

But the more pressing question hanging over the show is this: After “Runway’s” fifth season concludes Oct. 15 on Bravo, how long will viewers have to wait for its return?

The future of the reality show is in limbo, the subject of a bitter lawsuit between Bravo’s parent company, NBC Universal, and the show’s producer, the Weinstein Co.

“I think they’re going to be sad if they have to wait,” host and executive producer Heidi Klum said of the program’s fans. “And, of course, we will be sad too. But we’re all sitting in the same boat. We don’t really know what is going to happen.”

Executive producer Harvey Weinstein was planning to show the next season of “Project Runway” on Lifetime Television, which struck a lucrative deal for the rights to the program. But NBC Universal sued, claiming the Weinstein Co. breached its contract by shopping the show to another network. Two weeks ago, a New York State Supreme Court judge granted its request for a preliminary injunction to stop Lifetime from airing or promoting the show or its new spinoff, “Models of the Runway.”

While the parties haggle, production is nearly complete on the sixth season, set in Los Angeles instead of New York, with guest judges such as Lindsay Lohan and Eva Longoria assessing the work of a new batch of designers.

But barring a settlement agreement, it appears highly unlikely that “Runway” will be back on the air in January in time for a finale at New York Fashion Week in February, as Lifetime had hoped. That means it would be delayed until at least late summer so the finalists could show their collections at fashion week in September.

If NBC prevails, the situation is more complicated. It’s all but certain that the show wouldn’t return to Bravo, the network on which it became a hit. That’s in no small part because Weinstein has “a particular dislike” for Lauren Zalaznick, the NBC Universal executive who oversees Bravo, as Judge Richard B. Lowe noted in his Sept. 26 ruling. Before their negotiations ended, NBC Universal and Weinstein were discussing airing “Runway” on a different network, perhaps even as part of NBC’s prime-time schedule.

The bottom line: Until the suit is resolved, the upcoming two episodes of the show may be the last that “Runway” aficionados will see for a while.

For Bravo, “Project Runway” helped power its rise as a destination for a young and affluent audience. By far the most-watched program on the cable channel, ratings for the show are at an all-time high this season, averaging 3.98 million viewers each episode.

“It is the gold standard,” said Frances Berwick, general manager of Bravo Media. “It has been very influential for us and many other networks as well.”

Competition shows that explore the creative process, such as “Top Chef,” “Shear Genius” and “Top Design,” are now the cornerstone of Bravo’s schedule.

Klum stressed that the upcoming season will not deviate from “Runway’s” tried-and-true formula. She and Gunn will be back, as will judges Michael Kors and Nina Garcia, though they are not in every episode.

“We’ve had a lot of criticism from people where they thought, ‘Oh, it’s not going to be the same, or it’s not going to be as cool,’ ” Klum said. “For everyone who’s worried out there, they shouldn’t be worried, because it is just as cool. The only thing that really is different is the talent on the show.”