…and maybe even world bosses.
In POE I love the fact that the hardest boss encounter drop some of the best items ingame… it’s super fun to make a build just for bosses and farm them over and over again.
In Diablo 4 this is sadly not the case atm, Uber Lillith f.e. has no specific loot table so it probably will be a 1-time fight for a personal achievement.
This is very sad becasue the fight is super fun…same with worldbosses, only with the difference that those are not fun atm becasue the encounters are way to easy.
Suggestion: Let Uber bosses, Worldbosses and even encounter like the BUtcher drop the rarest uniques in the game with a lil bit higher dropchance, so it’s worth to farm them over and over again (ofc world bosses only if they get buffed and are not 1 minute punching bags with 0 damage as they currently are).
Let’s take “Harlequin Crest” as example…Let’s say the droprate of this item is 0,001% atm (just as exaple), Uber & World-Bosses would have a 1-2% chance to drop those items.
The dropchance is still low but people who want to target farm this items would have a place to go and a reason to make a build just for this purpose.
I hope to see such addition in future, so we will get another endgame in Diablo 4…The endgame to farm the toughest bosses in the game over and over again.
Some of the bosses are realy nice in Diablo 4 and Uber versions of them would be even more amazing, don’t waste theyr potential please and let them remain meaningles. 
Thank you