After Sherlock Season 3 airs and you've seen all episodes... #Sherlock pic.twitter.com/3HAuaVE5Mp
— Hafsa Scott (@WantedJewels) November 3, 2013
You know you're asking that if you've seen all of s3 already!
News about Hamlet via the Cumberbatchweb tumblr as of 10-December-2013. Note that it's mostly good news, so take heart! Ben is slated for the West End in 2014.