I recommended this months ago, however it was in the old archived ‘suggestions’ forum, but I think it deserves some thought..
I enjoy the feeling of progression and increasing challenge of fractals, and would like to see that brought over to dungeons to make runs more interesting.
Add levels to dungeon runs like fractals.
Levels are per path, and selected once you select a path.
Increase level like fractals by completing the path.
At levels 10+ agony is introduced like fractals.
30+ you get global challenges like fractals but specific to the dungeon and making things interesting.
This would bring a feeling of progression to dungeons, and provide more challenges, more rewards, and be a blast.