‘Sherlock’ Season 4 Spoilers: Fans Are In For A Treat! Check Out BTS Photos And Updates Here!

Before 2017 begins with an explosive premiere of "Sherlock" season 4, here are some spoilers and behind-the-scenes photos to fuel the fans' excitement. Also, official updates on the progress of filming have been displayed on various Twitter accounts of the cast and crew, teasing that fans are in for a treat from "Sherlock" season 4.

Update on the musical scoring for "Sherlock" season 4 has been reported. Composer Michael Price took to his Twitter account an update on the production timeline of "Sherlock" season 4. According to Price, the last day of recording with fellow composer David Arnold has transpired on Nov. 10.

In addition, it seems that the upcoming season 4 deems to be really exciting for the fans of "Sherlock" as when Amanda Abbington made some additional dialogue recording for "Sherlock" season 4, she tweeted that fans are in for a treat when the series returns next year.

"Sherlock" co-creator Mark Gatiss also took to his Twitter account a behind-the-scenes photo of Sherlock while filming episode 3. The photo shows a candid shot of Benedict Cumberbatch with a gloomy sky, the moon barely taking a peep from a dark night, which was adored by many "Sherlock" fans.

Furthermore, it looks like the finale episode of "Sherlock" season 4 will close down with extravagant music as David Arnold posted a photo on his Twitter account, revealing a snippet of the last episode, which shows a full harmonic orchestra.

Meanwhile, the creators Steven Moffat and Mark Gatiss have dropped some short and sweet clues for the upcoming "Sherlock" season 4. The creators did not give much details, but just revealed that fans of "Sherlock" may expect the new season to explore the themes of Thatcher, Smith and Sherrinford. Also, rumors are circulating the possibility of Sherlock reuniting with Irene Adler. University Herald reported that the upcoming season 4 of "Sherlock" will feature how Irene will save Sherlock from the pangs of Smith.

"Sherlock" season 4 will premiere on Jan. 1, 2017 on BBC.