There are 3 clues in the teaser of Sherlock Season 4 to figure out what the upcoming season in 2017 has in store.
Season 3 of Sherlock appeared 2 years back, but the eagerness and excitement of the fans has not gone down. In fact, Sherlock Season 4 teaser is really dark, and shows there are a lot more hidden secrets in that brilliant mind of Britain’s most favorite detective.
The three clues also happen to be clear references – Smith, Thatcher and Sherrinford.
Toby Jones is being added as another villain – most probably Culverton Smith – that’s the first clue. The second clue Thatcher, our guess is has something to do with Margaret. But it’s really the third one that is the most intriguing of all. Digital Spy says that Sherrinford Holmes is the ‘hypothetical’ elder brother of Sherlock Holmes and Mycroft Holmes. Digital Spy further adds that the name ‘Sherrinford’ was one that Arthur Conan Doyle had considered for his detective before finalizing Sherlock.
We can only keep guessing. The real story will unveil in 2017, when the Season 4 of Sherlock premieres.