In my opinion developers didn't use the most fitting animations for Dark Knight in 5.0 rework. It's not the biggest issue of the job (if we can call it issue), but considering how easy fix is (just applying other animations currently available) i think it's worth discussing it. Let me specify what i have in mind.
1. Delirium should use Dark Arts animation.
2. Bloodspiller should use HW Delirium animation. It looks very weird when we spam it, Delirium should make it look smoother.
3. In my opinion old aggro combo looks better than current 123 combo, but this is very subjective. At this point they could just implement some sort of skill glamour system to choose what we want (which was suggested a few times already in other forum categories), but it's not something that can be done just like that.
4. Rampart should use Shadowskin animation, but i'm not sure how easy it is to implement, considering it's shared action.
Of course it shouldn't be their top priority, but animations and sounds are very important part of how job feels like, so i think they could improve it. It seems like they didn't really think these changes through.