Just going of the lore from what I read. I think a language should be created for death knights in WOW specifically the language of death. This has been recognized in the lore and I feel that it is a good way to communicate with cross faction. I’m just saying DH can do it with speaking demonic as that is in their lore, why not DKs with death.
My other recommendation is that Paladins have the ability to detect the undead. In lore the Death Knights have this ability as well and in some parts of the lore it even states that they see spirits as well. Its an ability already created for Pallys, and I feel that it should be apart of the Death Knights skill set as well.
I can’t be the only one who has thought of this.