I know what the next Digimon chapter is about: it's when Tai returns to the real world and reunites with his sister, starting to remember how it all began and how he met Agumon. I don't know if you're going to do this chapter or the one after, where Tokomon explains how the group split up, but from Y/N's perspective. In this chapter, it starts where the DigiDestined were before Tai left, showing how the team begins to fall apart and how Y/N has to manage alone without Sora. During this period of separation, Y/N will have their own journey alongside their companions, and when Tai returns, I think it should show how he starts to reunite the team one by one, remembering everything that happened to Y/N because of their condition. When he looks for Sora and convinces her, in the next chapter, the team should search for Y/N because they are all worried since they abandoned her, and they feel guilty for not having cared for and protected her because of her condition, and Sora seeks their forgiveness and they reconcile