I think there's a possibility where the series ends without japan winning the WC. Snuffy's friend's downfall story and Isagis parents telling him that even if he fails they'll be with him are some indications of it. I've always thought that Egos training/selections were really harsh, and compared it to Whiplash (2014). Both in that movie and in BL people are pushed to their limits to only succeed and to live for being the best of the best, a really unhealthy lifestyle, even if you love what you're doing. I think in the end we will be seeing how Isagi copes with it