This is not just a part of the fission of the US Episcopal Church. It is a reflection of the coming apart of the entire Anglican Communion.
In the US now, there are “Anglicans” who claim communion with Canterbury who acknowledge episcopal direction by Anglican bishops from the Anglican Churches of the US, Nigeria, Kenya, Rwanda, and the Southern Cone (South America).
Here in this part of BC Canada, there are “Anglicans” under Anglican bishops from Canada, Rwanda, and the Southern Cone.
These are not so-called “continuing” communities - those who claim to be Anglican, but are not in communion with Canterbury. They all assert claims of communion with Canterbury, through the respective national churches of their bishops. However, the respective Canadian and US national Anglican Churches deny the validity of the claims. These national churches are themselves, in some large parts, not recognized by other Anglican national churches, like Nigeria (apx. 40 million members out of 77 million). These national churches, like Nigeria, do, though, recognize the American and Canadian Anglicans who are communion members through other national churches.
Episcopal Bishop Duncan is recognized as a Bishop of the Anglican Church of the Southern Cone, irrespective of the action of the US Episcopal Church, who would in turn now argue he is not in Anglican orders at all.
There is, in addition, various associations, some of which link these extra-national Anglicans with Continuing communities, who are not in communion with Canterbury.
It is very messy, and flying apart into pieces. It’s no cause for joy among Christians, because its most likely effect will be indifference to the faith, not conversion, by Anglicans who are confused, fed up, or both. The national churches are shrinking fast.
Prayer is indicated. No one wants any Christian to become indifferent to that part of the truth of the faith they may possess.
Gerry