When the Word created grain and grapes on day three, was He thinking about the glorious purpose that He would give bread and wine around a table some 4000 years later? When the Logos created man on day six, breathing life into his flesh and blood, did the He consider then how He would soon (in light of eternity) take on flesh Himself and spill His own blood for sinful men?
The apostle John not only wrote about the Logos and creation (John 1:1-4), he also wrote about the “book of life” that was “written before the foundation of the world” concerning “the Lamb who was slain” (Revelation 13:8). That means that the cross, and our remembrance of it at communion, was not an after-creation thought for the Logos-Lamb. As good as God declared creation was before the Fall, as much as the Logos and the Spirit and Father enjoyed what they had made, the Trinity knew what was coming.
While we chew over the eternal place of the cross and even the communion elements, let us remember that the Logos was with God, and by His body and blood, we who believe can also be with God. Jesus prayed that we may be with Him, to see the Son’s glory given to Him by the Father because the Father loved Him before the foundation of the world (John 17:24). The glory that He had with His Father before creation is the glory He shares with those who share in the communion meal by faith.