[Thomas] Ryan envisions a reunified church that expresses the best of every Christian tradition: “When God puts us back together again . . . this great Church will be marked by the dignity and repentance of the Anglicans, the order and sacraments of the Roman Catholics, the warm fellowship of the United Church, the Presbyterian desire for good preaching and the Lutheran respect for sound theology. There will be the Evangelical concern for individual salvation, the Congregational respect for the rights of the lay members, the Pentecostal reliance on the power of the Holy Spirit and the Quaker appreciation of silence. We will find there the Mennonite sense of community, the social action of the Salvation Army and the Reformed love of the Bible, all wrapped in Orthodox reverence before the mystery of God” (179). Ryan recognizes that the path to reunion is the path of penitence, so in each case we can hope for a renunciation of all that is contrary to the Lord and His gospel.
Source: Peter Leithart - "Christian Unity", First Things blog post reviewing Thomas Ryan's book, 14 Feb 2017, https://www.firstthings.com/blogs/leithart/2017/02/christian-unity