Mycroft pose. Afraid this is [nearly] all spoiler zone territory.
The Game Is On... Something I completely missed, but which sounded fun -- a Q-and-A with Team Sherlock. Well, a bunch of them. Una and Andrew couldn't make it, nor Benedict either.
Here's some selected quotes. Cumberbatchweb's write-up of The Game Is On.
Some fan videos by Missabre and various other goodies, like swag, art, and so on -- courtesy of SherlockCares, discovered through the folks at the Seattle Sherlock convention.
Far art of Doctor Watson, using scenes throughout the series, and Mycroft's first meeting with John.
Pic: Sherlock with a gun in Scandal. Radio Times asks "What does [the name] Cumberbatch mean?"
Baskerville: Where does the smart code lead?