Harley Quinn's revenge Idea

K, so the new trailer for Harley Quinn's revenge is out, but I won't put it up as it has spoilers for those who haven't beaten Arkham City. Anyway, it involves Batman being shot in the chest. I had an idea. What if they killed off Batman? Not only would it come to the player as a massive shock, but it would open up for the Scarecrow in the next game. The two previous Arkham games have been about Batman and the Joker, but with Mark Hamill saying the Arkham City was the last time he would take the role of the clown prince of crime, the new villain for the next game is most likely Scarecrow (as hinted through Arkham City) So what better way to set up a new story than by killing off Bruce Wayne and making Nightwing the new Batman. The voice actor must be Bruce Greenwood from Batman: Under the Red Hood and the fantastic TV show Young Justice.