@Ruby
I'm now wondering how the villain community is handling Joker's death. I mean, they all spent a lot of time together in Arkham through the years so I imagine it would be like losing a co-worker that you didn't exactly like but whose work you respected. You'd be a little sad and reminiscent but not weeping.
@LePouvantail
Maybe Scarecrow and Riddler should get together and share a drink while remembering the Clown Prince of Crime?
Meanwhile.....Ivy's probably relieved at Joker's death and more concerned with where Harley went >.>