Analysis of information sources in references of the Wikipedia article "Synod of Bishops in the Catholic Church" in English language version.
Whatever the merits of Apostolica Sollicitudo, it was an expression of papal primacy, not of collegiality, a word never mentioned in the text. It was a preemptive strike by the center.
...the Vatican announced [...] Pope Francis will host an Extraordinary General Assembly of the Synod of Bishops to discuss [...] 'The Pastoral Challenges of the Family in the Context of Evangelization.' The meeting will take place in Rome, October 5–14, 2014...