Diablo 4 End Game!

I’ve read that the end game is just going to be the same dungeons but just made harder.

  1. With the loot we receive from these dungeons what are we gearing towards to kill?
  2. If there is no leader boards and no speed running, what are we aiming towards after finishing the story with nothing to work towards to kill.

Just looking for a bit of clarity on end game other than dungeons with modifiers and they are really boring to me. I like to be gearing up, to work towards a goal, and i cant see that at the moment!