Joker is one of the most iconic comic book characters in existence. And ripping off his face was a big change on the part of DC.
And while his face being re-attatched in a horror movie-like fashion suits Snyder's current direction with the character, I pose a few questions for what the future of the character holds:
First off, should this become Joker's new, permanent look? Or should they find some way to re-attatch his face?
Second, if they did reattatch his face, how would it be done? Obviously there are unlimited opportunities for it to happen in a comic book universe but how would you have it happen? Would he go to some magical entity and demand it? Would this entity perhaps reattatch it without his consent?
And lastly, will it matter - can Joker survive Death of the Family? The writers seem to be making a huge deal about "Nobody is off limits" with regard to death. Is it possible that they'd actually kill the Joker...?