He died at the end of Endgame, which was supposed to be the final battle.

@Leostales I know, but I'll be pissed if it's a fake out again.

The Joker's an extremely iconic character. If Tynion doesn't bring him back, someone else will.

Will you kill a golden goose?

I know this might not be the best example but they killed Alfred and in past kept Batman away for 2 years after Infinite Crsis. So who knows?