I think it's an interesting possibility particularly when you consider:
1.) how durable Sanji potentially is atm after buffing his already durable exoskeleton with armament (i.e. his exoskeleton by itself was enough to shatter Queen's sword), I doubt Zoro's sword shatters on making contact with Sanji's body even with an armament buff but it could potentially break/bend/chip if Sanji puts some force behind that durability with a powerful kick for example.
2.) that Oda could be planing to have Zoro give up one of his swords for the Nidai at the end of this arc. So Oda might have him lose the Sandai to replace it with the Nidai for example.
3.) a potential Sanji v Zoro fight as a result of Sanji losing his emotions
That said, I think the likelihood of this happening is very low. If Oda was gonna have one of Zoro's swords damaged I can't help but feel he'd have done this with either the Kaido or the King fights. I mean we already had foreshadowing of Dinos bending non-black blades on TB, so with that Oda could've easily had King bend Zoro's sword as a catalyst for him to create a black blade but seeing as we didn't get that I don't think Oda is going to go the route of Zoro's sword getting damaged so he can replace it with another one.
More likely than not he gives away the Sandai and then acquires the Nidai to replace it.
IIRC Momo is a two-styled swordsman but is left with only the Habakiri (i.e one sword) now that Zoro has acquired Enma, so maybe Zoro gives Sandai to Momonosuke ^^