The Future of THM

[Catapult]

Great, now I have to go hunting... here we go.

Quoted from http://forum.square-enix.com/ffxiv/t...form-Blueprint
Posted in the Battle Reform Blueprint by Matsui

Jobs
The job system - that series-defining trademark - will be implemented in FINAL FANTASY XIV (details such as specific jobs TBA). Quests to unlock each job will become available once you have reached a certain rank in the corresponding class.
Rather than being advanced versions of classes, we would like players to think of jobs as specialized playing styles optimized for partying. While playing as a particular job will render you unable to equip certain actions of other classes, you will be compensated with access to exclusive actions, which can be acquired through quests.

In practice, players will find the existing classes effective when playing solo or in certain party setups. Jobs, however, will shine in party situations where specific skill sets are demanded. Now, you didn’t hear this from me, but there are also rumors circulating that quests for obtaining job-exclusive equipment are also in the pipes.
We at the development team are currently hard at work on the job system, and expect to have details to share with you soon.

Thus it is unreasonable to assume that White Mage = upgraded Conjurer.

Granted, it is possible that Conjurer may unlock White Mage, but to assume it will do this simply because Conjurer currently fills the healer's role is missing the entire point of what Matsui is trying to achieve.