Should level 55 job abilities be overpowered, but content made more difficult?

[Gilraen]

I'm more interested in how we are going to continue job quests and the such? - OR how we are going to gain new abilities.

The majority of level 50 job quests finished their storyline - white mage performed the ritual, bard accepted his past etc etc ... Wonder if they will continue to teach us or will we have a new trainer..

Remember that Jobs are just modifications of the classes. Further quests could have us return to the class tutors, continue the stories there.