the new world to the west and some interesting connections

[Dotsusama]

Why would it be unlikely that they lock new players out from starting THF/NIN until after they've progressed through the main story? FF11 did things like that and worked fine. Although, I imagine a Rogue class will be unlockable right away with a THF job crystal to advanced to and NIN will be unlocked after the completing up to the next patch's main story.

This is not FFXI, but I see your point. Having the job quests unlocked when you purchase a new expansion is one thing, but I have a feeling that having the jobs locked down until you actually progressed in the new area's storyline would not go over well with players. Plus, would this unlock the class at level 50, or level 1? These are things the devs have to consider.

Once she is welcomed she opens shop and starts teaching her Art of (insert class here). Works as she is new right now but to start teaching one does not need buildings but simply free time to teach the students.

I'm honestly not following your statement at all. My meaning was that to a fresh level 1 character in the game, with no in-game story progression, it makes no sense to meet her yet as a trainer because until the time passes and the character reaches level 50 to complete the main scenario up until the 2.2 content, to player characters and to NPCs in the world, Yugiri does not exist. She has yet to visit Eorzea. Does that make more sense?