When Pope Benedict went to Fatima in 2010, he said this, “May the seven years which separate us from the centenary of the apparitions hasten the fulfillment of the prophecy of the triumph of the Immaculate Heart of May, to the glory of the Most Holy Trinity.”
There are two groups of people who see this statement in two very different lights.
The first is mostly made up of those who believe in Medjugorje and think that the Church is entering into a time of triumphant success, with thousands of priests being ordained and millions converting, beginning a new age of the Catholic Monarchy.
A second group are those who believe that this statement has something to do with the specific third secret of Fatima.
I am in a group of one. My own idea has been this. The Immaculate Heart of Mary is completely pure. A triumph of her heart to me means the purification of the Church through suffering and trials. That the Church coming out of terrible persecutions would be purified and full of saints would a triumph of her Immaculate Heart.
A reminder...
http://www.vatican.va/roman_curia/congregations/cfaith/documents/rc_con_cfaith_doc_20000626_message-fatima_en.html