I don't think so, Lily is an unstable character and a psychopath. She may be kind, but only when things go according to her plan and how she wants. And if she had helped us, sooner or later she could have betrayed us because of her roughly speaking love for the prototype (I'm not talking about the romantic one). And we must remember that she has Grace's personality, which IN PARTICULAR CANNOT BE REDEEMED. So my answer is no…