Though for the new players who don't have a lv50 I feel like the new jobs would be unlocked in the new zones. If they were to be at the city states every time it might be too clustered and make no room to have a area to call their own (unless they open up new areas in the city with which is what they did with rogue/ninja.

I say new zones because you have to go through the story mode of 2.x to even get into the zones of Heavensward but it's just speculation.