The crack remains ugly, and I think I mentioned I don't think it will ever go away. I think the scar at her coronary band causes the hoofwall to grow in too weak to withhold the expansion/contraction of a healthy hoof. But so long as it is attached to the lamina, I'm happy. And so far it is growing out that way:
This last pic illustrates the attached crack down to the detached crack. Luckily, even the detached, wider part of the crack isn't extremely flared off the lamina.
Her hooves are at five weeks here and she's getting done on Wednesday, so the flaring is very apparent right now.