That said, I certainly wouldn't mind a Doctor who got serious about finding better alternatives to destruction. Twelve said at the end of "Deep Breath" (and in, like, about ninety thousand promos) that he's made many mistakes in his life and it's time he started to do something about that. Maybe that means refining his methods, or being more proactive about keeping situations from getting so far out of hand that destruction is the only alternative left. So kind of like a less ruthless Seventh Doctor, masterminding situations in advance but with the goal of finding better solutions rather than simply winning.