In this 2003 video, Cardinal Ratzinger speaks of ad orientem celebration:
He also speaks about a future document favorable to the Traditional Mass:
Did you catch what Cardinal Ratzinger said at the end? That’s almost identical to what would appear in Summorum Pontificum (motu proprio) of 7 July 2007:
“There is no contradiction between the two editions of the Roman Missal. In the history of the liturgy there is growth and progress, but no rupture. What earlier generations held as sacred, remains sacred and great for us too, and it cannot be all of a sudden entirely forbidden or even considered harmful. It behooves all of us to preserve the riches which have developed in the Church’s faith and prayer, and to give them their proper place.”
If anyone wants to provide transcripts of these videos, we will gladly post them.