Do not worry, my fellow dps friends.
The great time for Thief/MA/Blade dancer is about to come.
First, pvp: DPS and hitters are allways good in pvp.
Second, grinding: In later levels, quests will be out before you can level up, so we'll need to kill mobs to level up. Tanks for mob? Healers? mages asking for Mp pots? NO!
Just fast kill ! DPS! No aoe, right, but... fast kills!
Even better for Blade dancer. They got plenty of area buffys AND are dps, of course. Who will need a priest/bard???