More rumors are circulating that one of the most beloved costume dramas, "Downton Abbey," may be coming to an end with the end of Season 6.

Although neither its creator nor the production companies have said anything about it ending, the growing number of rumors hints that the show may end after season six.

TVLine has reported that "Downton Abbey" may come to an end after six seasons. Some hints have been aired, especially by Dame Maggie Smith, who plays the Dowager Countess. She hinted she would be leaving the show after this upcoming season as her character was aging. However, her representatives said she would stay with the show until its end.

TVLine's sources say that the show's ending is more pragmatic as many of the cast's contracts end with season six and many of them want to look for work elsewhere. Dan Stevens (Matthew Crawley) and Jessica Brown Findlay (Lady Sybil) left the show early on and in season five Lily James (Lady Rose) and Allen Leech (Tom Branson) left as well, continuing the exodus of actors.

"You can keep the show going without Matthew and Sybill [sic], but you can't continue it without the entire Crawley family," an insider told TVLine.

NBC Universal, which owns the show's producer Carnival, declined to comment on the rumors.

Last week, creator and write Julian Fellowes had said he would no longer answer questions pertaining to the show's ending, as more rumors continue to permeate the conversation of when it will end.

At the end of last year, Fellowes talked to the Daily Express about the show's ending but he still kept much to himself about the show.

"I never talk about either the stories or the series -- the reason for not talking about the series is because nothing is fixed," he said.

Fellowes has begun work on a new series, "The Gilded Age," to air soon on NBC.

In the meantime, the cast is filming the six season, set to air in the U.K. in September and in the U.S. next year. The season will be set in 1925 and filming in Lacock, Wiltshire has had some issues, as many tourists have taken over the little town, according to the Telegraph.