Ok so with more thought heres what my ideal system would be

Jobs: You DO NOT level them seperately

Lets take Thm and Conj for example as what you can do.


At rank 1(in either) You unlock "Black Mage", and "White Mage", depending on which job you use, your get bonus's and penalties in the specialties of them.
At rank 20, you unlock "red mage" doing this allows you to get bonus's in everything, but not as high as if you stayed as a black or white mage job(you still have the option to switch at will)
At 50 you unlock X job(dont wanna think something up) which will have its own specializations too

The basic idea is not giving you something else to grind on, but by choosing your "job" you are on that job, for that class while you do things.

So you may see Pugs going around as Monks, or Martial Artists, or whatever else they add
A Gladiator may be a warrior or a Paladin
Marauder can also be a warrior, or dark knight

etc etc

its a system that could compliment whats in place without destroying whats in place