As we already know, the Batman universe established in 1989 by director Tim Burton’s BATMAN (starring Michael Keaton) will be revisited in the form of the DC Comics miniseries, BATMAN ’89. Now, DC has released the synopsis for issue #1 along with a look at the variant cover by Jerry Ordway…...
Sounds like Harvey might
actually be seen becoming Two-Face. That earns it a 1993 placement, due to the movie it's definitely going to ignore.
DC wiki description
Some time after the events of Batman
, Dent is still the district attorney of Gotham City. He put the current mafia don of the city, Boss Maroni, on trial. During the trial, Maroni threw acid into Dent's face, and despite Batman's efforts, Dent was hit, and half of his face became scarred. He was driven mad and took up the identity of Two-Face
. He vowed revenge against Batman for not saving him. He was subsequently captured and sent to Arkham Asylum
I guess I can kinda see the comic taking place after his scarring and arrest by Batman, but it's probably delaying the inevitable of having two different versions of the Burtonverse. We'll see, it's all fine either way, as long as it's good and makes sense.
At least Crisis gives a way to explain all this...