They’ll be fine. They are growing. They have planted seven churches. Ever hear of TEC congregations planting churches these days?
David Virtue summarized it with some fairness at www.virtueonline.org: "The congregation, now under the Anglican Church of North America, remains solidly Anglican though no long allied with the heretical Episcopal Church. The liberal, continuing Episcopalians will be moving back in. Time will show they cannot sustain it."
TEC, however, continues to atrophy. It maintains its geriatric services for an aging population. It also services long-time Episcopalians, some of whom don't follow the national church and who desire the Bishops to remain scarce, ever hoping that they "can worship quietly." It also serves some of us, Confessional types, who cannot find Anglican services locally that are faithful to the Reformed Confessions.
Barring a reformation in the seminaries, denominational headquarters and amongst the leaders, this group--officially denying Article 18 of the Articles--will continue its adaptation to the ancient mystery religions. It's botched 1979 BCP and hymnal holds off the waffly clerics.
Having known and served with several TEC clerics, contrary to their own assumptions about themselves, they were not very impressive theologically. Let the vetting of theological elites continue.