I still don't understand how character advancement will work in this game.
Think Terraria or Zelda.
Expand health/mana through "heart containers" you get from bosses or chests (this is going into Landmark, at least).
Expand functionality by finding different tools (hookshot, jumping boots, bombs, etc.), spells, recipes, etc.
Expand playstyle by finding new classes, skills.
Expand/enhance gear through drops/chests/crafting, breaking down / recreating new pieces, finding new recipes, defeating enemies for gear or crafting elements, or harvesting resources and using them.
And then they'll have an additional layer of advancement through spec points, which are earned by completing "achievements" or "goals", however you want to describe that. "Green Thumb: Help the druids defend Surefall Glade. +1 Advancement Point" might be an example of how they could do it. They described something similar to this.
The progression in EQNext seems very horizontal; lots of different aspects that make up the versatility of your character. Think Ocarina of Time Link in the beginning with 3 hearts, and Link in the end with 20 hearts, hookshot, mirror shield, fire tunic, etc.