Tom Tykwer [NOT] to direct Wagner's Ring 2013 at Bayreuth

UPDATED: Katharina Wagner says that Tom Tykwer will NOT direct the Ring at Bayreuth in 2013.
According to a well-informed source, the film director Tom Tykwer will direct the Ring at Bayreuth in 2013. 2013 marks the 200th anniversary of Richard Wagner's birth, so this production is regarded as a special event. There will be numerous Ring productions all over the world this year.

Tykwer is also