Sorry, I wasn't able to read the rest of the thread, but the way I understood from the whole "No base class involved" part of the info, I thought it was because it'll branch off of a current class, like off of Marauder or Gladiator until lv.30, just like how Scholar and Summoner branched from Arcanist. So a number of us would be able to have a lv.50 DRK if most of us already have lv.50 Paladin/Warrior.

It can be a play of words or literally what they state, but I it's only speculation.