Series 3 of Sherlock to film in early 2013. Beryl Vertue mentioned it at today’s Nations and Regions Media conference
The implication of that is we are unlikely to see series 3 until Autumn 2013. The BBC tend to keep its best material for Autumn/winter months.
I was hoping for some slack in late 2012 but with Hobbit pr work I suppose that was naive. More importantly I hope that means Benedict has a big film project lined up for Autumn 2012.