Pope Francis decrees Memorial of Mary, Mother of the Church
Our Lady of the Column over the altar of Mary, Mother of the Church in St. Peter’s Basilica
Pope Francis has decreed the insertion into the calendar of the ORDINARY Form the Memorial of Mary, Mother of the Church, to be celebrated on Pentecost Monday.
The decree is dated 11 Feb 2018, the 160th anniversary of the first apparition of Our Blessed Mother at Lourdes.
How this will work with the Extraordinary Form is a bit of a puzzle, since we celebrated the Octave of Pentecost. It seems to me that adding her orations to the Collect, etc., would be a good approach.