LB will coming sooner or later, but it will just show how inbalanced the game currently is.
The first version of d3 lb did not have categories (just solo classes 2p 3p 4p), the specific set ones came later.
But how can you make such categories here? The top 10 000 slot of solo rogue will be simply death trap and that’s it. Based on which core skill is equipped or how? Death trap build will throw smoke bomb to include any skill and voila top 1 spot there.