I would have actually liked to see those powers in humans and have a human resistance of vampire. So while a vampire has super speed a human can control the speed of targets making the vampires go into matrix time. That way it would have made sense for vampires to want secrecy, they don't want beef with the humans.

And you know, I don't mind a book ending in a way other than a battle (Most of my stories are like that) but they have to make sense. The non battle feels like a cop-out instead of a real ending.