Richard Parry, LU's Director of Strategy and Service Development said: "During this time, District and Circle line services will not stop at the station and customers are advised to use nearby Temple and Mansion House stations."
The work will also bring a station entrance on the South Bank and overground platforms stretching across the Thames. The new platforms are to accommodate new 50% longer 12 car trains. Full details are on the Tube's website.
Blackfriars Tube station opened in 1870 and is one of the oldest stations on the system. It's been influential to Tube fancy dress parties as you can see from the picture above. Also Neil Gaiman had an order of monks called the Blackfriars in his TV series and novel Neverwhere, where many characters were based on London Underground station names.