True Detective's anthology structure has some fans worried about whether or not the series will return for a third season in 2016.

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Production is still underway for the crime drama's second season, which has yet to debut on HBO. Nonetheless, fans of the series are already looking to the show's future and many do not like what they see.

On Friday the fan site True Detective Rumors voiced concern about the network being able to keep the series running. Expectation for the program's second installment is incredibly high and its success or failure could impact the show's future.

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There have been rumors regarding delays in production, which have led some to fear that the show's second season won't even be released until 2016.

Many viewers estimate that the popular crime drama will at the very least make it to a third season, though there's no way to tell for sure what will happen beyond that.

This year, the series will star Vince Vaughn (career criminal Frank Semyon), Colin Farrell (Detective Ray Velcoro), Rachel McAdams (Detective Ani Bezzerides) and Taylor Kitsch (Officer Paul Woodrugh).

Penned by creator Nic Pizzolatto, the installment will follow the murder of a corrupt city manager in California. Fast and Furious alum Justin Lin directed the premiere, which has not received an air date at this time.

True Detective will return on HBO for a second season mid-2015.