I honestly don't really think a PTR is even needed for this game. This is the first, and likely only time for quite a while, that they've ever made such a big change to the combat system. While they're not perfect of course, the dev team really seems to put a lot more effort into personally testing out new content and changes than any other game developers I've come across, and they make a pretty consistent effort to listen to player feedback and implement changes quickly if something doesn't hold up after public release. As much as people complain, (because let's face it, people will complain no matter what), I'd say that the classes in XIV are probably some of the most balanced I've seen in any game, much less an MMO. They seem to know what they're doing, and even their missteps in the past haven't been anything major enough to need an immediate change aside from maybe a hotfix for a bug or two......