Thinking about it, I like the idea of the Wynters winning the first battle. It would remove the Hyraces from the top of the food chain for a while and force the Order to make compromises with the vampires they were sworn to kill in order to gather the power to take the Wynters off their pedestal before they do too much damage. I could also see it leading to the beginning of a transition in power from Peter to Vail, because it would partly be Peter's fault for denying the Wynters' threats for too long. He could blame himself for the loss (especially if members of their clan die in the fighting) and lose faith in himself as a leader, so Vail would have to step up to keep them safe while also helping Victoria adapt to life as a vampire.