Well, losing your emotions is a big theme in post-timskip one piece, especially in Wano. We've had so many examples of characters losing their emotions: 1. First, It was in PH when children who ate the gintification candy lost their emotions; 2. Second, in WCI where we had simultaneously two plot lines involving Big Mom's hunger mode and Vinsmoke's emotionless; 3. And finally in Wano where we have the smile DF side effects and Sanji's Germa awakening.
Considering the fact that we have all these plotlines in Wano with Big Mom, Sanji, and smile side effects + the fact that Vegapank will come to Wano at some point since it has been foreshadowed to happen, then I think it's logical to assume that Vegapank will cure all of them at once. So coming from that angle it's more than likely that Oda will use Sanji as GUINEA PIG for Vegapank to experiment and HYPE him in expense of Sanji's character as Oda has always done.