Honestly at that point it sounds like you're just describing the class/job system as initializally envisioned, but uh... we never got more than ACN -> SMN or SCH, and, well, we've all seen how that got built off of. (it didn't, and also, they've been doing everything in their power to scrub it out. Wouldn't be surprise if 7.0 finally completely removed SCH from ACN tbh).