Hey, here's a crazy idea, what if Zoro breaks both (his and his opponents) swords in this fight?
I was just thinking, maybe they'll meet Smoker and co soon after this arc, which means Tagashi would be there. Having only the sword that Kuina used to own could be useful to the storyline somehow. Ryuma could be this strong to justify Zoro losing his latest cursed sword. Or not, just speculating there, since it would also suck to lose that cool sword.
Thats why by losing his 3rd Gen Kitetsu, it can free up for a much better sword. It would be cool if he broke Ryuma's sword, but IMO, I hope he gains his sword, and Im hoping its one of the 12 Saijo O Wazamono. I mean, Ryuma was stated to be centuries old by Hogback, and it be sick if Zoro got a legendary sword from a legendary swordman.
If Ryuma decides to give Zoro his sword, it could be a way of passing the torch from the legend from long ago, to a legend that will pave the future. (Sounds corny, but sweet)
I'd rather see Tashigi's face when she sees Zoro again, she sees that new sword Zoro attained:
Tashigi: "Zoro! I challenge you….....wait a minute! That sword!" Flips through the little sword book guide and manual
Falls back in shock
"No way......that sword......the oldest of the Saijo O Wazamono, owned by the Legendary Dragon killer Ryuma.......worth 500 million Beli."
Zoro: "Correction...was owned, now its mine"
Either way, I'm pretty sure this guy is a stronger swordsman then Kaku.
Well of course! Ryuma will be pimp. He'll make Kaku his Bitch