Reaper is ahead and will most likely get nerfed but there are other roles and Jobs that really need to be looked at before Reaper.

Like Paladin the other tanks, Ninja should be buffed a lot before Reaper is nerfed a little, White Mage needs help and Physical DPS and Caster DPS are pretty much just one Job each now.

Bringing up the many extreme under-performers before the single slight over-performer would do way more for the overall health and balance of the game.