It won't be until 2016 when TV series Sherlock returns to the small screen, but the show's devotees cannot help but talking about it and much like their favorite detective, gather up clues on what to expect next season.
BBC has revealed that there will be a single episode of the series in 2015, much like a Christmas special. Variety said that it will deal with the cliffhanger from season 3, where Sherlock (Benedict Cumberbatch) returns to London bombarded with flashing screens of James Moriarty (Andrew Scott) saying, "Miss me?"
Meanwhile, the first image from the special episode showed Cumberbatch and Martin Freeman (Dr. Watson) sporting Victorian clothing. There is no reason given yet for their historical attire, but fans would surely be surprised by what Sherlock has in store.
"There are lots of surprises to come," guaranteed Sherlock co-creator Mark Gatiss during an interview with Radio Times.
On the other hand, co-creator Steven Moffat hinted heavily during an interview with Entertainment Weekly that there will be tragedy and lots of tears during season 4.
"We have a plan to top season 3. And I do think our plan is devastating. We've practically reduced our cast to tears telling them the plan," he said. "We're probably more excited than we've ever been about Sherlock."
One of the most popular theories is that Watson's wife Mary Morstan (Amanda Abbington) will meet her end soon. "While we play fast and loose with the original stories, we generally follow the trajectory of what Conan Doyle did," actor Freeman told The Telegraph earlier this year. "So John gets married, and then Mary dies – so at some point presumably she'll die."
Before the heartbreak, however, there will be a bundle of joy for Watson and Mary, and the two will deal with being parents for the first time. "On the one hand, they'd probably be reckless because they're both quite psychopathic," actress Abbington dished to Vulture. "But I think an assassin and an army doctor who loves trouble, I mean, that kid has got nothing to worry about. Screwed up mentally, of course, but if there's any bullying on the playground, we're covered."