[NotMyWay]

What it means is something like this...

Taking the example of a mage, at level 60, the title "Powerful Enchanter" is accquired. This is merely a title, and does not affect the abilities of the mage in anyway, just like how "Talk Show Host" is a title and doesnt do anything useful except allow u to display it before ur name. The class (not title) will still be "WizMage" until after the job change. (im assuming that by the time they reach around 5x-6x surely they would have completed the lv 20 job change quest?).

After the job change quest, the WizMage's class is changed to Enchanter, and he still gets to keep the "Powerful Enchanter" title. He will not get any "Enchanter" title, because there is no such title, and "Enchanter" is the name of the class.