I don't think it matters what approach Diana uses. I really don't see how Donna Troy can be redeemed. I was really disappointed with how the story panned out in the annual. Donna Troy isn't just some naive young girl. Based solely on her actions to this point, she's a flat out war criminal. She led an attack that slaughtered a bunch of innocent, unarmed men. And those men happened to be the brothers and sons of their fellow Amazons, which makes it even more egregious. If Donna was manipulated into do it, there hasn't been a very good explanation of how. There's no question that she needs to be redeemed, but I'm not sure it's even possible at this point.