This is an interesting piece from Al Mohler:
Adrian Hamilton is concerned that the Church of England “will not survive my children’s lifetime and quite possibly not even my own.” Writing in The Independent [London], Hamilton writes of a Church of England that remains established as the national church, but is no longer established in the hearts of the nation.
You can read the whole article here. Here’s Mohler’s concluding remarks:
As valid as the institutional question of establishment may be, the more important factor in this pattern of decline is theological. Churches and denominations decline when they lose or forfeit their passion for the Gospel of Jesus Christ and for the Bible as the enduring, authoritative, and totally truthful Word of God. If life and death are no longer understood to hang in the balance, there is little reason for the British people to worry about anything related to Christianity. If a church is not passionate about seeing sinners come to faith in the Lord Jesus Christ, if there is no powerful biblical message from its pulpits, then it is destined for decline and eventual disappearance.
When a church forfeits its doctrinal convictions and then embraces ambiguity and tolerates heresy, it undermines its own credibility and embraces its own destruction.
Already Not Yet 
I’m not so sure the Anglican church is on the way out. People have been predicting it’s demise for as long as I can remember.
Like most denominations, it has some active, spiritually alive churches and some that are not. There are Anglican believers across the world engaged in mission in churches that are reaching out to their communities with the love and gospel of Christ.
Long may it continue!
Amen! And let’s pray for biblical revival and reformation as well!