Justice Legion: Aftermath
This is a story that I've been playing around with for awhile. The premise of the tale starts with the current DC universe, yet there is a time skip to the future after the main events happen. In the current time, Lex Luthor activates Superboy and Supergirl, who kill Superman and take over the world afterwards.
Most heroes are either killed or leave the planet there after, but Bruce Wayne remains alive and in hiding. He blames himself for letting the world slip into chaos, but he has a new apprentice, Terry Mcginnis, who he is going to train to help save the world. He knows Terry will need help, so Bruce hunts down the rest of the Legion to help his apprentice fight the new world order.