Today, the one hundred and fifth Archbishop was announced following the Queen's approval at Lambeth Palace to be the Rt. Rev. Justin Welby, Bishop of Durham.
"In his opening statement at Lambeth Palace, Bishop Justin said he was “astonished and excited” to be taking over from Dr Rowan Williams, who stands down as Archbishop at the end of December. Acknowledging the many challenges faced by the Church, he said it will be a privilege to provide leadership "at a time of great spiritual hunger"."
From the website of the Archbishop: http://www.archbishopofcanterbury.org/index.php