Batman gets the crow
Lets say the Joker gets lucky and offs the bat with something as daft as a Semtex laced whoopee cushion. thus Bruce is dead buried until a year later the crow resurrects Bats in order for him to fulfill his vengeance on Joker for such a humiliating demise .
As Bats now has the power of super strength and invincibility , would he stop stop after he offs the Joker or as Batman , will he continue on ala Red Rain Batman?
I am the law.
If it's a groovy enough narrative like The Crow, I could see Bruce going through the city messing up all sorts of his classic villains on his way to Joker. And also having a touching subplot with Catwoman and Robin(s). While Gordon is on the case. Though I wouldn't quite want Batman to go kill crazy, maybe he'll just be dismember crazy. Hook-hands and peglegs for everyone!