But see Melkay, this IS the argument in a nutshell, because if Ledger were alive people wouldn't be coming up with all these reasons for the Joker NOT to be in the next film. In fact, I suspect most fans would be angered if he were alive and the Joker didn't return in the next movie. And once you look at it from that perspective, IMO, it makes all these back and forth arguments pretty trite.
Honestly, who would be sitting here coming up with all these scenarios and talking about the Joker being so "used up" and his story being "finished" if Heath were alive? Honestly? My problem is most of these people just won't admit this simple fact, they try and act like they would feel the same way regardless of the situation, and I can't really believe that. I'll give you respect because at least you've came out and said the truth numerous times, I just wish others would do the same, and then we can understand what we're really debating. It's not the merits of another Joker appearance, it's the moral sentiment of allowing Ledger to die with a role he so obviously gave very much to.
To me, this is the argument, because everything said from the opposing side would be absolutely irrelevant if the man were still alive, so what are we really discussing here? The fact that you really, honestly, believe the Joker to be used up and finished as a character for a Nolan film, or the fact that you just don't want to see anyone else in the role?