I'm glad Yona enthralled the doting maids; he needs and deserves that kindness in his life. Darkly part of me wants him to just die happy surrounded by the loved ones he's made at the end. I don't need the MC to be saved or cured; I just want him to realize that the neglect his family put him through isn't the norm. The MC isn't just "not a burden" that shouldn't even be something someone at his age should think about. Everything else is secondary to me. Maybe I would like his family coming to realize they mistreated a gem of a human being and see what'd happen to them if all the people the MC has met and will meet (by the end) found out how poorly they treated him. Otherwise, yeah, I don't want him to die and expect him to be cured. But like I said I just really want the boy to feel loved. Unconditionally loved at that.
I said it on a previous chapter - but I think the most
impactful ending is Yona dying at the end of the year, but after having changed the course of countless peoples' lives, including the trajectory of nations (like with Prince Carlo's case, here), all for the better by virtue of not
just his magic, but his unassailable kindness and sense of justice and moral good.
He moves on from helping Prince Carlo here, to assisting others he meets--commoners and nobility and royalty alike--all overawed by his magic, but who come to respect him for his bearing and his compassion, even more so.
And when he
does finally reach the end of his road, he finds himself surrounded by everyone he'd met and helped and made friends with - Gunther his physician; Marguriete and her father; Carlo and Aurora & Priscilla; all the others we've yet to have introduced - and as he takes his last breath, it's nothing but a smile on his face and happy tears all around, and those whose lives he touched go on to see his legacy maintained even beyond the lands he himself traveled.
I don't personally care if his own family ever even show up again; maybe a footnote about how his former family's old domain came under new noble management and that realm is prospering, but there needn't be some punitive epilogue where his family suffers or is left destitute or anything. Because that would also go against what Yona stands for, if I'm being honest.
If Yona ends up saved and lives past this year, I think it could be done well in a way that doesn't involve "Ancient Magic Fiat" or something. And with how impactful his meeting with Marguriete was, I personally would be fine with them growing closer as they age and perhaps there being something there down the line.
But I don't think it's required, and Yona actually passing on and gaining immortality through the works he leaves behind would be rather poignant, and something you don't typically see in these sorts of stories that revolve around "Feel Good" narration.
It'd be bold on the author's part, and I'd applaud that move, personally.