The DLC includes new scenes and challenges that appear throughout the series, specifically tied to the "mysterious stranger" assisting you. Gameplay Impact
If you have been gone too long, you cease to be the “lost heir” and become the “stranger.” There is a half-life to the advantage. If you have been absent longer than you were ever present, the emotional bond breaks. You become an outsider with a claim, which is the most dangerous position of all.
Players receive significant bumps to various skills and abilities, including the critical "Willpower" stat. This makes it easier to pass the high-stakes "stat checks" that often determine life or death in the late game.