That would be a nice idea! a server with the live client, but using new job/combat changes. This would allow testing without letting people datamine everything, from fights to story spoilers.

And yeah, I agree that healers and tanks are kind of no-brainers atm. The only thing that makes healing actually hard is because you have to react to people's mistakes, but... in general, the gameplay is pretty much the same. I agree that AST was the most interesting healer because of the cards "minigame" built in.

With the implementation of Sage, I'm kind of seeing changes for all healers across the board (major ones in case of SCH), and I hope this gets addressed!