In one sense, I'm kinda disappointed to not see the after-effects of what would happen, but I totally get why it can't happen in the game. I find these ripple effects on the world extremely compelling.
Especially the Champion becoming the "handpicked champion of Keros". As Kura even mentions when she first sees them post-transformation, "there will be those who despise you because of who you were and what you've become" (paraphrasing as I didn't copy/paste her dialogue). I know everyone is trying to maintain face and stability/the status quo, but Kinu even mentions how she thinks that the colonial Kitsune look at her as a way of increasing their standing back in the Old Country. And the abdication scene is very interesting, though the rep is irritating with her being barely polite to them which just further cements how little they think of the colonies.
If I was in the Old Country, I'd be very concerned with what was happening in the colonies, especially in the region where a disgraced governess currently leads. The colonies now have a Den Mother descended from Chizuru reborn personally by Keros, with a potentially very large brood already, married (personally blessed by Keros) to the handpicked Champion of Keros, who was reborn (again, personally by Keros) into a Kitsune. That's a lot of personal involvement by their patron deity on a specific couple away from the Emperor's court. I could imagine the whispered discussions being had there, and the backroom intrigue that would result. Of course, the fact that Keros is personally involved may temper any attempts on them (don't want to piss him off), but as word spreads in the colonies about this powerful couple, especially as the war against Kasyrra progresses and their fame grows, may prompt many to ask why they should listen to the Cherry Blossom throne anymore, leading to what Trisitan Black says, a civil war.
I think that's what I love the most about this game the most. Come for the sex, but stay for the geopolitical intrigue and world changing events. The damn good writing doesn't hurt either.