Fr Z. at What Does the Prayer Really Say has this:
IT’S COMING – MOTU PROPRIO – 7 JULY
On Wednesday afternoon the Secretary of State, Tarcisio Card. Bertone gave the Motu Proprio to 30 bishops from around the world on Wednesday afternoon in the Apostolic Palace. The bishops were explicitly chosen and invited for this. (I am guessing that they were heads of Bishops Conferences.) Pope Benedict XVI later came to the meeting. The document is three pages long, though what the format is in not revealed. The Pope’s accompanying letter is four pages.
It is clear from the way this was done that the Holy Father wanted to make sure that bishops got this document in this way, rather than having to read about it in the paper. I assume that what will happen now is that these bishops, if they are heads of conferences, will return home and distribute the document to the bishop members of the conference.
[UPDATE: They are not only heads of conferences: H.E. Archbp. Raymond Burke of St. Louis and H.E. Sean Card. O’Malley of Boston was there, whether because of this meeting or a coincidental meeting is not clear.]
The general publication is 7 July.
His source was Kath.net for those of you who would like the original German (The Cafeteria is Closed has a full translation). The Kath.net report says that Cardinal Lehmann was there as the head of the German Conference. I wonder if Archbishop Wilson was called in?