It’s time to unleash Ramsay .
Ramsay has proven his value to his father multiple times, most notably when he compelled Theon/Reek to dress as Theon and order his father’s men to open the gates to Moat Cailin. His father will call upon him again in the coming battle with Stannis , who marches from The Wall to take Winterfell. Iwan Rheon says the upcoming battle with Stannis is at the top of Ramsay’s list: “I don’t think anyone would be able to keep him off that battlefield.”
Ramsay’s pending nuptials to Sansa potentially make her a target as his cruelty, though Rheon believes Roose would frown upon physical violence toward her because of the value of her birthright to Winterfell.