My opinion... having played through multiple characters from the original Beta, early start, and into the veteran levels, an opinion shared by a whole lot of original players... is that the scheme selected by ZOS for continuing the play of characters ate the so-called veteran levels is total, complete, and absolute ***.
Presuming you have multiple characters -- as most of us do -- you are going to repeat a WHOLE LOT OF QESTS you have already done. BORING. UNINTERESTING. THOROUGHLY A JOKE...
Basically, ZOS had no plans for what players were supposed to do after reaching max level, so they concocted the biggest piece of *** imaginable...