I do know that more than a few of these "Anglican/Episcopalian" parishes have decided to join Holy Orthodoxy. Here in Denver, at least one of the Western Rite churches was a few years ago entirely Episcopalian, if not two entire parishes.
Perhaps the conservative views, the loose connection with the Anglican Church and the icons you point out signal them as potentially very close to the Church? It doesn't require many concessions for Episcopalians to become Orthodox. My best friend's father gifted him a Book of Common Prayer, and, really, it isn't much of a different liturgy than pre-Vatican-II Roman liturgy upon investigation. But I suppose it depends mostly on apostolic succession, which apparently the Orthodox Church accepts of many of them.
God works in mysterious ways, it has been said.