Heretic of The Seventh Circle
Not really. If you just grab your next subclass feature when the new writeup says you get a new subclass feature, ignoring the levels and just going in order, it works fine for most classes.It's a kludge (at best) as written now. The old subclasses are going to need rewrites to fit the new subclass structure.
I do wonder if all classes will have the same progression, or only within each group.
I can’t imagine waiting until 3rd level to pick a sorcerous origin, for instance.