An accompanying letter to all bishops has already been prepared. The matter has been decided. There will be no "system reboot" like with a crashed computer. Benedict XVI. gives back to the Catholic liturgy its original standard, by which the rite of 1969, which had frequently lost its orientation, can measure itself, new and decisively.
Folks: There is speculation about the date of the release. Right now the Pope and the new head of the Italian Bishop’s conference are heavily engaging certain moral issues being hotly debated in the public square in Italy. I am lead to wonder if, given the proximity to Holy Week and the hot debate, he might not wait for a more serene moment to release the Motu Proprio. On the other hand, the Pope has been accused of not wanting to still thing up too much after the famous Regensburg Address and then he makes strong statement about Europe’s continuing desire to kill itself.
Anything is possible.