I see this in every thread on the subject and, while not wanting to quash any dreams, there's really no precedent for Thief (Job). You can't even use XI as a precedent for it as thief (class) was one of the 6 starting jobs. That is it's available right off the bat. In no game that I've played was thief an unlocked class, more it was a class used to unlock other classes. If past games are any clue, as they have been thus far, it's thief/Ninja and maybe a second Job that's not been hinted yet. Why make thief instead of Thief? Well, it's pretty simple. What would you call the class? Pickpocket? Blackjack (historically speaking blackjacks weren't a hand in a card game)? Cutpurse? But those are all just other ways to say thief (100g says the French name will be cutpurse anyway). Not saying I'm right, but if the name of the class winds up thief, don't be too shocked.