The last time Luffy lost it was Sanji who Oda used to reinforce the idea that people aren't going to lose their fate in Luffy so I think it is important that both he and Zoro go to the live floor. But I think it's more likely that Sanji is going to finish his germa transformation and lose his emotions next chapter in a brief scene.
I do like the idea of Sanji becoming evil and an actual threat to the other Straw Hats for some time until a solution is found to revert him to normal, but I think this is very unlikely to happen.
The scene of him even going so far as to deliver Osome's mouse in safety to her after beating Queen seemed to have the purpose to convey the message that Sanji's emotions will just definitely not be affected by Germa's technology.