[Bring_Back_Shantz]

Originally Posted by underGRADFlame

Yeah it needs to almost be a cameo, Joker in Arkham laughing manically in his cell would be cool I still think the only one who could pull it off is Depp.

That's kind of what I'd like to see too.
Joker is still alive, as far as we know, and the last movie had a cameo from scarecrow, so there is a bit of continuity between the two.
I'd be a shame if they just went with "Oh the Joker? Oh, he's in jail, we don't have to worry about him".
It'd be cool if they somehow acknowleded that he's still around, and maybe even threw him on camera for a few minutes, but any more than that and they're just asking for the Interwebz to explode with "OMG they totally ruined the movies!!!!!".