score:4
I believe that it will be final. Until the heads of diocese who voted in the negative die, or leave their leadership positions, as well as a compelling case being made for it, the Church of England simply has no reason to join. It gives other churches power within the Anglican Church that there's no reason to relinquish. As I see it, the accord will simply continue on without them. They already have enough churches to make this document significant, and there's no guarantee that if they change it that the Church of England would accept and ratify it. Better to stick with what they have and accomplish what they can without the Church of England, than to change it in a way that may alienate other churches.
Summary
I believe it will pass without the ratification of the Church of England, at least for a long time. It provides what many churches are seeking, with regard to conflict resolution, and providing more overall unity.