I don't know that anything would change.
That's not the point, though... We are entrusting this man, should he be elected again, to this position; to be the most powerful person on the planet. And to the extent that the lack of details is driven by him personally (and would it be surprising if it was, frankly?), we can infer what to expect should become President.
Especially, as we are currently experiencing, as he proceeds from his late 70s into his early 80s.