Unlike the other people who carry the initial D in their names, Blackbeard has shown to fear death, making it unlikely that he would die accepting his death and with a smile on his face like the other members of The Will of D that have died. However, I believe that he will die smiling, but not because he accepts his death or is happy about something.
My theory is that whatever situation he is in that causes his death will also have caused him to lose his mind, causing him to insanely laugh as he dies, thereby allowing him to share the trait of laughing in the face of death with the other members of The Will of D, even though he himself fears death.
My theory is that whatever situation he is in that causes his death will also have caused him to lose his mind, causing him to insanely laugh as he dies, thereby allowing him to share the trait of laughing in the face of death with the other members of The Will of D, even though he himself fears death.