I like that, despite being a traitor and horrible person, Roose did have restraint and some logic/intelligence. He utterly dismissed Ramsay's plan to march on Castle Black and kill the Lord Commander, because he knew it would cause all of the North to rebel against him. It wasn't even an option to him, yet it was Ramsay's first instinct.
All I know is I can't wait for the impeding Snow/wildlings/houses loyal to the Starks vs Ramsay.
Fan fiction ending for me will be Sansa throwing on some armor, then getting her chance for revenge against Ramsay. Then, in typical Sansa fashion, falls off her horse and breaks her neck... paralyzing her for the rest of the show.