Lay presidency at the Lord's supper has been considered for about 30 years in Sydney Diocese. Now it's being looked at again, and looks set to be allowed to happen this time.
This is the way it should be. The idea that a special priestly caste should have the role of leading the Lord's Supper is at best anachronistic. It reflects the Roman Catholic idea that the leader of the church has a priestly role of mediating between man and God, and is nowhere to be found in the New Testament.
I first led the Lord's Supper as a layman in an Anglican Church back in 1985. We remembered together our Lord's death for the forgiveness of our sins, and life went on.