User blog comment:Jameselite2c-therealdeal/Zoro's in Wano arc!!/@comment-24850639-20170905161506

I can definitely agree that Oda showed us the Kitetsu for a reason, but I personally think Zoro is going to keep the Shusui. While I am fan of the theory that Zoro has samurai blood in him, I'm a also a fan of the theory that the progenitor of this bloodline is none other than Ryuuma himself. I believe it will come to be revealed that Zoro is a direct descendant of Ryuuma, and he will "earn", the right to keep Shusui after he helps liberate Wano from Kaido's clutches. It will definitely come with controversy, people will be wanting to fight him for it right and left, but Zoro will eventually earn his keep by endearing himself to the country.

I do still see him leaving Wano with a new blade however, and he doesn't take new swords unless something happens to one of his current ones. I agree that the blade that will be lost somehow is the Sandai Kitetsu, but I haven't thought to theorize how quite yet. I believe Zoro will obtain a new sword that will allow him to tap into elemental powers. It looks like Oda set Wano up somewhat like the ninja villages in Naruto, where there are different sections of the country that practice different elemental techniques. Zoro immediately took an interest in Kin'emon's fire-based swordsmanship, and he somehow caused Ryuuma's wound to ignite when they fought. I'm not sure if this was a latent ability or what, but in either case I think Oda's done enough of his subtle hint style foreshadowing around the subject for us to expect more.

As far the demon aura goes, I have always agreed it might be related to that sealed eye. I'm on the fence about there being more than one aura though, I mean we've barely got any experience with Asura.