The Hygraces ended up having to leave their manor, so Vail would have to seek them out once the fighting cools off. He wouldn't just up and leave without finding out what happened, and I was also planning to start the shift in leadership right away. Peter would still be in shock after the attack, so Vail would be the one to find somewhere safe for them to go while they recover from what the Wynters did.

It takes about a week before the turned human wakes up. Vail wouldn't want to leave Victoria while she's vulnerable, so realistically, he would end up taking her with him if she was turned right away. If you still want her to go to Scotland first, maybe it would be better to wait a little. Either that, or the Hygraces could also flee to Scotland (not necessarily to the exact same location) because England isn't safe for them anymore. Vail would have seen the Saints' plans, so he would know the address of the place where Victoria was supposed to go. He could bring her there first and then once he's sure she's protected for the time being, he could return to look for his clan and bring them to Scotland, because he would choose to stay close to Victoria while he's waiting to find out if she'll wake up. (I'd just summarize most of the transition in one post unless you'd prefer to write for some side characters while Victoria is out cold)

In a way, it might be more fitting for her to be turned quickly, because if Vail drained all of her blood, he'd have more than enough power to get her and himself away from the Wynters. It could give us a natural exit from that scene.

If you've got any other ideas, I'm open to suggestions though!