I don't think Vorena will end up slitting her father's throat

I think she might hold him down while someone else does it (metaphorically or literally!) Or perhaps she'll become reconciled to him eventually, but ... I know it's not the Vorenus way, but I STILL think that, like Atia, he should have begged his children's pardon for what happened to them. Maybe that would have given them some kind of different view of him. (I know, it wouldn't be very Roman paterfamilias of him, but his idea of treating them gently is kind of wide of the mark!)