Sherlock Renewed for Season 4

Sherlock Renewed for Season 4

Shooting on the special will begin in January 2015 — to possibly not air until Christmastime, Martin Freeman has hinted — with production on Season 4 set for later next year.

Gatiss promised the new series would take Sherlock Holmes and John Watson "into deeper and darker water".

The announcement follows comments from Freeman, who plays Sherlock's sidekick, earlier this week. He appeared to let slip in an interview the show would return for a one-off special.

Martin Freeman told The Telegraph "I'm speaking off-message here; if this was New Labour I'd get fired - I think that might be for next Christmas. A Christmas special. That's what I understand." He also confirmed his partner Amanda Abbington will return to her role, as Watson's wife Mary, for the special. 

“It’s taken a little while to get the dates sorted as none of the boys are exactly sitting back twiddling their thumbs,” quips Sue Vertue, executive producer at Hartswood Films, “but there was unanimous goodwill to make this work so we’re thrilled that 221b is going to be inhabited again.”

Source: BBC