I was able to sneak a peek at the documents regarding the upcoming job system announcement coming next week and I smuggled out a lil' morsel that you might be interested in. I figure, if you all knew what classes were required for each job, you could set a goal to raise them up over the weekend (if you're like Camate who was all "omg Bayohne, help me level up my lancer tomorrow!"...).

Take a gander at the requirements to begin the quests to unlock the jobs... (don't tell Yoshi-P I showed you!)

Job NameRequirements
PaladinGladiator lvl 30+, Conjurer lvl 15+
MonkPugilist lvl 30+, Lancer lvl 15+
WarriorMarauder lvl 30+, Gladiator lvl 15+
DragoonLancer lvl 30+, Pugilist lvl 15+
BardArcher lvl 30+, Conjurer lvl 15+
White MageConjurer lvl 30+, Gladiator lvl 15+
Black MageThaumaturge lvl 30+, Pugilist lvl 15+