I wouldn’t mind a more seasonal approach to hardcore. Maybe something wacky like SOD, giving mobs a percentage buff, or like having no classes and having to randomly choose between abilities as you level so each character is unique.
Playing hardcore the first time before the anniversary release made me love WoW again. I felt like a kid playing for the first time and this is coming from someone who has played since vanilla and the past several expansions. Hardcore at release is great because its fresh but after awhile I feel like I need to play self-found because it gets too easy once players get to a high lvl and could help you with your journey.