In Chapter 1038 we see Zoro wakes up and sees a hooded skeleton wielding a scythe ready to strike him while he himself can’t move at all.
Oda already used that same aura that you see behind the reaper for 2 other occasions both connected with Zoro and his blades. In both occasions there is Zoro & blade and someone talking about death.
The picture below is when Kozaburo is saying to Zoro that blades are created to kill.
This second picture is about the cursed blades. People that ain’t strong enough will die if they use the Kitetsu blades.
What does that tell me? Well that Oda wants to explore more the lore about blades and death aka black blades that Hitetsu point in Wano.