Originally Posted by The Joker
Did Joker win the battle for Gotham's soul at the end of TDK? No. Did he manage to bring a better class of criminal to Gotham like he wanted? No. So he didn't win. His victory was covered up with a lie.
Bruce: "The Batman wasn't needed any more. We won"
Gordon: "Based on a lie"
It may have been based on a lie, but they still stopped the Joker from winning.
Exactly and as the thread asks "in hindsight what changes would YOU do", it would be that the lie that was created at then of TDK would have actually meant something when it was exposed. Just seems odd to have lead an audience into believing how important the coverup was and then have it mean so little in the sequel.