There is only one Body, one Eucharist, and one Christ. The schism is a condition of this world, of Earth, not of Heaven. Orthodox, Catholic, Protestant, doesn't matter in heaven, for the worldly schism will be mended and we will all be one, as the Father and the Son are One, bound together by the Love between them who is the Holy Spirit.
Wherever the Spirit is, there is the Body of Christ, for it is the Love of God which makes us One with God.
On a more practical note, Vatican II seems to have been a direct attempt at this. It's a shame that most of the Trads on all sides seem to have missed that.