The fact we get all these changes in 4.3 and still want more shows how poor of a state DRK is in...

Top of my list is living dead, people have wanted that adjusted since DRK was added.
Then souleater and abyssal drain having a 50% hp drain as standard, then 100% with grit/dark arts respectively.
Just making blood weapon and blood price into stances and adjusting delerium to boost them.
Shadow wall could still use some kind of gimmick like how vengeance gets counter attacks.