Sherlock Special to Be Victorian

Steven Moffat has confirmed that the Sherlock special will be a non-canon adventure that takes place in Victorian times. It is not a dream or costume party, though he didn't rule out WhoLock.

The special is its own thing. We wouldn’t have done the story we’re doing, and the way we’re doing it, if we didn’t have this special. It’s not part of the run of three episodes. So we had this to do it – as we could hardly conceal – it’s Victorian. [Co-creator Mark Gatiss] and me, we wanted to do this, but it had to be a special, it had to be separate entity on its own. It’s kind of in its own little bubble.