Wano will be about sSamurais and swords; lots of attention will fall upon Zoro.
He has 3 swords right now:
Meito; Wado Ichimonji (formerly belonged to Kuina)
Sandai Kitetsu (formerly belonged to Ippon-Matsu)
Meito; Shusui (formerly belonged to Ryuma)
Especially the Shusui, formerly belonging to Wano legend Ryuma, will make the Samurai notice Zoro (and maybe accuse him of robbery, like Kinemon did at first.)
He already lost one important sword during the story:
Meito; Yubashiri: 1 of 50 (Skillful Grade) Ryo Wazamono (formerly belonged to Ippon-Matsu, destroyed at Enies Lobby by Shu, now resting on Thriller Bark)
Do you think he will get a new sword in Wano, or switch one of his current swords with a better one?