Father Zuhlsdorf, who works with the Ecclesia Dei Commission in Rome, speculates:
That SMS is the third confirmation I have gotten. So, I feel safer about saying what I am piecing together. Remember: this is based reliable sources but it is still supposition on my part. I sift the exaggerated stuff out and try to get a consistent picture. In no special order…
1) The document will definitely be a Motu Proprio. (That means it will be from the Pope and not a document of a Congregation or joint document issued by different dicasteries.)
2) At the beginning of November it was in its final draft, after four revisions.
3) During the third week of November it was suggested that the document might come out in about three weeks. This would put it around… well… now.
4) It will authorize private celebration of Mass with the 1962 Missal by any priest as he chooses. Public Masses will be regulated by the bishop.
5) What a "private" Mass is will be defined in the document. A number will be established for what constitutes a "private" Mass. Provided the group is that size, no permission of the bishop will be necessary.
6) If I understand it right, and I admit I might be confused, there might be something in the document about greater numbers of people (than what would constitute a "private" Mass) being allowed to attend without the bishop’s permission so long as a Mass in the Novus Ordo is first provided for those who want it. I am not sure about this element, but it might be a prudent solution. If I am right about this element of the document, the idea would be to ensure that a priest doesn’t simply stop offering people the chance to attend the Novus Ordo and thus force everyone to go to the older form. See what I mean?
7) The document will stress the obligation of bishops to be "generous" in allowing the older form of Mass to be offered publicly with language much strong than that in the Motu Proprio "Ecclesia Dei adflicta" of John Paul II.
A few days ago I jokingly said that it would be just my luck that the thing would be released on a day when I was away from Rome and not able to get online. Well… I am going out of town for a couple days on Friday. Let’s take this cvm grano salis but … hmmm!
About the number of people that might constitute a "private" Mass…. Whereas the older idea of "private" was definitely more restrictive, the new document will more than likely suggest a number.
I haven’t heard what that number is.