I initially thought Jobs would be unlocked in such fashion, but seeing as how it has been confirmed that at least the first set of 7 Jobs to be released will each be unlocked by one of the 7 classes with only a level requirement from said class, a lot of those go out the window.

Primarily it was confirmed that Paladin, for example, would be unlocked by a quest one can undertake with the requirement of being a Gladiator at a specific level that if I remember correctly has not been disclosed - but it is less than 50. It was also confirmed that the other 6 initial jobs will have similar requirements for their respective classes.

One thing, however, is they did mention looking into the idea of jobs based on a combination of classes - with respective level requirements - that raises the question: what weapon will the job use? The given example was CON Lv. X and THM Lv. Y to unlock the Red Mage Job.

Essentially those are what we have been told from the devs so far.

The way I see the Job system based on the information disclosed thus far;

Classes will represent weapon proficiency, whereas Jobs will be the clearly defined roles of a player. In example, a gladiator is someone proficient (high level) at the use of swords/daggers and thus is very skullful (has learned a number skills from that class) however he undertakes a quest in which he learns the art of being a Paladin. The Paladin, itself, can be considered a build separate from the Gladiator - however one is able to attain that honor only after reaching a certain proficiency with the Paladin's weapon-of-choice.

If you take this logic and apply it to most other classic Final Fantasy jobs you will clearly see which class alone they will stem from. However, most does not cut it. As we were given the example of Red Mage, simply going by what weapon a Red Mage uses is not enough to connect it to a class - and thus it should require proficiency in a variety of weapons.

Therefore, when I imagine a system with the flexibility to encompass both types of requirements I think of one where either:
  • Jobs, like classes, will have their own job-specific weapons
  • The player, once having equipped a job, will have access to more than a single type of weapon as permitted by the job

I expect a great many things from Jobs!