Some things are being misunderstood here.
- Firstly, Lurking Legend was never alluded to be about this arc specifically. Whether it's legitimately Rocks, or someone else, it does not have to occur here. It can be fallout from this arc though, leading to something else. I'm convinced it's him potentially being alive, but we'll have to wait and see.
- Apparently the translation from the anime director is just a mistranslation overall, and really shouldn't be taken that seriously.
- the Enma/Black Blade comment from Tengu, like Lurking Legend, did not imply it has to happen in Wano. Read his dialogue again, it mentions nothing about it happening here, just the future.
- Toki's prophecy isnt really what you are thinking. Shes not like Madam Sharly. Shes nor clairvoyant. She simply knew about the plan from Oden and sent scabbards into the future, anticipating dawn. Shes talking about the 9 scabbards here. It's happened already. Oden actually had a prophecy, and it was about young pirates coming to shake the world. Nothing about 9 shadows.
- The rest of your points initially will most certainly be answered post-raid. Kaidos flashback may happen very soon as he loses, revelations about Wano, and Zoro's lineage may all be answered post-Wano with everything else. Zoro's especially, because he clearly will visit Ryuma's grave.
- Firstly, Lurking Legend was never alluded to be about this arc specifically. Whether it's legitimately Rocks, or someone else, it does not have to occur here. It can be fallout from this arc though, leading to something else. I'm convinced it's him potentially being alive, but we'll have to wait and see.
- Apparently the translation from the anime director is just a mistranslation overall, and really shouldn't be taken that seriously.
- the Enma/Black Blade comment from Tengu, like Lurking Legend, did not imply it has to happen in Wano. Read his dialogue again, it mentions nothing about it happening here, just the future.
- Toki's prophecy isnt really what you are thinking. Shes not like Madam Sharly. Shes nor clairvoyant. She simply knew about the plan from Oden and sent scabbards into the future, anticipating dawn. Shes talking about the 9 scabbards here. It's happened already. Oden actually had a prophecy, and it was about young pirates coming to shake the world. Nothing about 9 shadows.
- The rest of your points initially will most certainly be answered post-raid. Kaidos flashback may happen very soon as he loses, revelations about Wano, and Zoro's lineage may all be answered post-Wano with everything else. Zoro's especially, because he clearly will visit Ryuma's grave.
About the black blade & Zoro lineage stuff, I think it would be terrible if those were afterthoughts at the end of the arc or even if they were left until another arc. Even if Zoro does not forge a black blade in Wano, we should at least receive information about what a BB actually is before we leave, and it needs to be significant in my opinion. We were given hints about Luffy being Joyboy/Nika in Wano, told that it must be Luffy's fate in Wano, and Oda delivered on that. We were given the same dialogue in reference to Zoro being a Shimotsuki & black blades are directly tied into that through Ryuma. It would be a huge letdown if these things were not developed in Wano during important moments
Lastly, I kinda disagree about Toki's prophecy. Oden's words were much more direct and didn't really need explaining, yet we received clarification on that as soon as the rooftop fight started. On the other hand, Toki's prophecy can be interpreted much more ambiguously, yet we haven't received anything about that. I feel it is something that should be resolved