On the one hand, the nurturing type would be "good" for Tokio in a development and growth sense... On the other hand several things come to mind: first and foremost Tokio x Komaki would require it's own bloody manga, if it were to be done here, short of so far down the storyline that Tokio is in the same HS(which is only marginally set up) them encountering each other in a significant sense would be a hell of a deus ex, also it would be a mildly annoying way to resolve Tokio's feelings after so much build-up (again requiring essentially an entire manga in itself)
Don't get me wrong, it'd be interesting to see such a pairing, but it's simply not possible for it to be organic in any sort of realistic time frame, and if it went that route, I'd be shocked as this author is better than that. But, depending on various resolutions, I can envision an epilogue of Tokio failing to get into his primary choice and encountering Komaki after Chii has effed off to eat overseas. 🤷♂️