That is very likely where things are heading.
Rowan is facing a pretty serious drive towards splitting up the Anglican Communion but that is also true within the RCC. In particular, some of the practices and policies of the South American RCC factions are constantly challenging the Vatican.
In the Anglican Communion the US Episcopal Church has definitely become a challenge for Rowan and it shows no signs of going away anytime soon.
The thing that must be remembered though that as with all long term organizations, there are intentionally designed and created stumbling blocks in teh way of very rapid change.
Anyone so limited that they can only spell a word one way is severely handicapped!