Adding to Advance Job / Features, and Limited Job -> Advanced job

[Sandpark]

Interesting. But I would re-classify what you are asking for here. Other mmos have this thing called racial passives which gives strengths, perks, and stuff depending on the race you pick. Here what we have is called "Job Actives" or "Rolelaying Actives".
Job actives/Roleplaying actives:

• Bard- Music performance
• Dragoon- Jumping puzzles
• Dancer- Dance performance
• Puppetmaster- Craft minions
• Black Mage- Theater magician, juggle elements and magic tricks
• Ninja- Parkour and acrobatics
• Chemist- Concoct potions for super powers, like enhanced speed
• Summoner- Summon true form avatars outside combat
• Dark Knight- Can take vampiric or undead forms outside combat
• Paladin- Can take angelic or spiritual forms outside combat
• Monk- Kata performance
• Warrior- Can lift heavy objects or smash through certain objects
• Samurai- Poetic sword dancing

As for Blue Mage or any other new added limited jobs. They don't need their own special dungeon. Just make Blue Mage the class, the class is unable to enter duty finder. At level 50 have a job stone for Blue Mage the job. The job stone is not unlockable until every skill available is learned.SE has to decide if it will be DPS or Tank or Healer at the job level at that point.

Say you equip the job stone, all skills or traits not associated with the role SE decides for the job are unavailable and you only have the skills or traits for the role SE decided Blue Mage being in standard parties.

Equip the job stone and you can enter any standard party content. Take the job stone off and you can go back to being overpowered three role class. Make this class be able to progress past 50 unlike other classes with new skills and stuff when the job stone is unequipped.

As for actually learning spells. Have a beastiary sort of similar to a hunting log telling you where to learn spells and when they are learnt.

You asked about Chemist actives.
Well I would not lock this strictly to chemist but I had an idea for a crafting PvP earlier.
http://forum.square-enix.com/ffxiv/t...=1#post3203744