In Catholic World News there is an article on Vatican and traditionalists: rumors continue In that article you read:
For the past month, a recurrent rumor at the Vatican has been that Pope Benedict will issue a motu proprio allowing the universal use of the 1962 Roman Missal. (The use of the old rite is currently allowed only with the approval of the diocesan bishop, under the terms of the 1988 papal directive Ecclesia Dei, from which the Vatican commission draws its name.) Reports have also suggested that the Vatican is prepared to lift the decrees of excommunication against the SSPX leaders. And there have been reports that the Holy See could create a new ecclesiastical unit, an apostolic administration of personal prelature, for the pastoral care of traditionalist Catholics.
The Holy Father could wind up doing something simpler and issue a major document. The Pope could make a statement that the older form of Mass was never abrogated.