This report from the Catholic News Agency appears to provide the surest proof yet that there really is a Motu Propio on the traditional Latin mass ready to go:
VATICAN CITY, December 14 (CNA) – At the conclusion of the Ecclesia Dei commission this week, which is responsible for maintaining dialogue with the Lefevbrist movement, the former head of the Congregation for Divine Worship, Cardinal Jorge Medina, said Pope Benedict XVI it was “very probable” that Pope Benedict XVI would issue an indult for the celebration of the Mass of St. Pius V.The Mass of St. Pius V, which was celebrated universally before Vatican II, can currently be celebrated only with the permission of the local bishop. According to Cardinal Medina, the Pontiff may issue a “Motu Propio”—a document released on the Pope’s own authority—that would authorize the universal use of the missal without the need for diocesan approval. “The publication of a Motu Propio by the Pope allowing for widespread celebration of the Mass in Latin according to the missal of St. Pius V is very near,” the cardinal said.“The matter has been calmly studied and it was discussed for more than four hours, resulting in some corrections to the text of the Motu Propio,” he added. The next step for it to be definitively published will be taken by Cardinal Dario Castrillon, president of the commission “Ecclesia Dei, who will present the text to the Pope for his final approval.