From Fr. Longenecker, comes this excellent comment:
Let’s face it, the Church of England is never going to roll over and submit to the Holy Father, but it would be rather nice if a conservative group were to split off, join the Catholics and have Her Majesty come long for the ride. She could repudiate her role as the head of the Church of England, and the Anglicans could elect Elton John to take her place. That way they could have everything they really want: homosexual marriage and an old English queen as the head of their religion.