I don't see any of these attempts at top-down reunification as likely to produce any fruit in our lifetimes, unless by "fruit" you mean ripping the Holy Catholic and Apostolic Church in twain, with Antioch, Constantinople, and their followers going one way and the Slavs and Jerusalemites and their followers going the other. But even that's a bit far-fetched.
Personally, I think the reunion is more likely to happen this way:
1. Rome grows more and more ecumenist and liberal over time.
2. Rome eventually does something egregiously and undeniably heretical, like ordaining women to the presbyterate.
3. Sensible Roman Catholics join the Orthodox Western Rite en masse.
4. Orthodoxy becomes a major force in the West and what's left of the Roman Catholic Church becomes the Episcopal Church--Patriarchate of Italy.
5. The Eastern Catholics (referring here specifically to the non-Maronites, who were originally Orthodox and whose proper name may not here be spoken) flip back to Orthodoxy.
That said, this can only happen if Rome heads left, and at the moment, she seems slowly to be heading right, so reunion is not on the horizon.
I am worried about the Synod though.