Thing is, you can't just have the same story beats and direction repeated over and over. The sequels only work if you take the characters in new and unique directions, exploring character nuance and growth, relevant to their surroundings or to the times. Uncharted 1 set the tone, Uncharted 2 was preppy and over eccentric, Uncharted 3 was more about self reflection and doubt, and now Uncharted 4 is an extension of that, taken to a place where Drake is now married, settled down, living an ordinary life, until suddenly given the choice to be drawn back in to that world, and risk the ramifications it carries. As such there are difficult choices and considerations for him ahead. I think it's a sensible and well thought out direction to take the narrative and characters, especially as it might be relatable to a big portion of the franchise's day one fan base, an audience that would have grown with Drake over the last 10 years, and who's own lives may draw similar parallel with respect to changing lifestyle and responsibilities.
