Yes, yes he is:
VATICAN, LUTHERANS PREPARING DOCUMENT ON REFORMATION
"According to the Vatican official on ecumenism, the Church and the World Lutheran Federation are preparing a Joint Declaration on the Reformation, in view of the 500th anniversary of Martin Luther's 95 Theses.
Cardinal Kurt Koch, president of the Pontifical Council for Promoting Christian Unity, announced this in an interview with the German Catholic agency KNA.
In this context, Vatican Radio reported Monday that Benedict XVI wants his Sept. 22-25 trip to Germany to have an ecumenical focus."
Read the rest at Zenit.