^Lol son did you ever see a casket? nope.
Two face actor signed up for 2 movies.
*SPOILERS*
He didn't die, he probably was sent to arkham, and they acted like he was dead to give gotham a hero, and turn everyone on batman.
then in next movie, two face will break out, people will realize harvey dent isn't a hero, batman will save them, and everyone hop on the batman bandwagon again