Filming on the fourth season of Sherlock has been delayed, according to series co-creator Steven Moffat.

'Sherlock' Season 4 Ultimately About 'Consequences', Possibly 'Frightening'

Moffat appeared at the BAFTA TV Awards over the weekend where he discussed the progress of the upcoming season of Sherlock. The fourth season will not be filmed later this year; it has been pushed to spring 2016, according to Moffat (via DigitalSpy).

So it's looking like the series won't have the same release schedule as previous seasons, which have always aired in early months. Season 1 of Sherlock aired in 2010, season 2 aired in 2012 and season 3 aired in 2014. It's possible that fans won't see the fourth season until late 2016 or possibly even early 2017.

'Sherlock' Boss Addresses Sherlock Holmes Gay Rumors

Moffat previously spoke with DigitalSpy about what the fourth season entails for Sherlock Holmes (Benedict Cumberbatch) and Dr. John Watson (Martin Freeman).

"[Series four] is going to be... I suppose you'd say... consequences. It's consequences. Chickens come to roost," he said. "It's dark in some ways - obviously it's great fun and a Sherlock Holmes romp and all that - but there's a sense of things coming back to bite you."

Meanwhile, Sherlock fans won't truly have to wait that long for more content. There is an upcoming holiday special set to air in the winter, one that exists in "its own little bubble" of the Sherlock universe.

The Sherlock holiday special, which takes place in Victorian England, is set to air during the winter holidays though a specific premiere date has not been confirmed.

Tags: Sherlock television PBS BBC