I think we should see the Conversion of Russia from the ecclesiological perspective outlined in my Fatima (5) piece. And, for those unfamiliar with this, I allude also to the willingness of that great Pope S Pius X to envisage communicatio in Sacris between Catholics and Orthodox in Russia (facts in my piece of 22 November 2014).
When our Lady at Fatima contingently foretold the Conversion of Russia, I do not think that she meant that every single Russian would automatically become a a faithful and sacramentally regular worshipper (as I do not think that her promise about the preservation of the Faith in Portugal was falsified by the referendum vote of 2007 to admit abortion). That, this side of the Eschaton, is not the sort of place we are in. Nor, I think, did she mean that Patriarch Cyril and all Russians would immediately come into full juridical communion with the See of S Peter. What she did mean, surely, is something which can embrace (but is not exhausted in) the revival currently going on within the post-Soviet Russian Patriarchate, as well as in the other parts of the former Soviet bloc, such as the Ukraine.
[Incidentally, I have been told (was I misinformed?) that, during Patriarch Cyril's recent visit to celebrate the 300th anniversary of Russian Orthodoxy in this country, the Anglican incumbents of Canterbury and London (Chartres presumably proudly wearing his enkolpion) were present, and a Coptic bishop, but not the Archbishop of Westminster. I imagine an invitation did go to Westminster and that probably a representative was sent. This would suggest a more nuanced and tactful approach to Ukrainian sensitivities than Pope Francis was able to manage at that bungled meeting in Cuba! I wonder if Eparchial Bishop Hlib had a quiet word with Vin ... ]