Both say no
On Angela's EMI web page there are two operas listed. La Boheme in Zurich at Opernhaus on October 10th 2009 and Pagliaci in Berlin at Deutsche Oper on 24th and 27th of February 2010. I got replies from both operas. They don't know anything about this.
Both messages end like this: "I suggest you check our Website regularly in order to keep up with changes concerning the cast".
So, unpack and wait for news!