From Scratch: 6.0 Progression Systems

[Shurrikhan]

What would you like to see from 5.0 Progression Systems?

1. What current issues do you perceive, generally or in the technicals alone, with current progression?
   
   
2. Pretend for a moment that literally everything about progression, except perhaps that clearing encounters can drop loot, is gone. What comes to mind as a cohesive and satisfying way to fill the void and reformat progression as a whole?

...seriously, why can't we edit titles?

What would I like to see? Or what would I expect to see?

What you would like. We're not trying to just depress ourselves here.