Spoilers for Batman Endgame:
http://www.ign.com/articles/2015/04/29/batman-40-review
Batman and Joker die in the latest issue of Endgame. Batman and Joker fight to the death in the bottom of a cave and both bleed out and die after a bloody battle.
Commission Gordron will be wearing an armorized Bat-suit to continue the mantle now that Bruce is gone. Joker is finally dead, at least until the next big reboot.