It is my opinion that if an ‘ecumenical’ synod agrees in the officially few differences that separate the papal clergy from Orthodoxy and announces a union, Orthodoxy will receive a blow, and rather decisive : ideological glueing and lack of real unity with the western christianity, along with internal schisms.
The unity that exists in our common ‘european’ chaos, almost perfect already, will be sealed by the Orthodox clergy, leading to the greatest possible corruption.
This is what happens when a Church as such collapses, and faith is decided in laboratories. In the current conditions we need to help mutual contact in many ways, except for an official ideological union. While we need real unity, a unity that comes naturally, unsolicited, wherefrom doctrinal union springs, we prepare the exact opposite. Official ‘theological’ dialogs and the official union are prospects distant enough for us to not even think about them, even for many generations ahead.