Is there a post-credits scene for Avengers: Endgame? Why is someone else playing Catwoman in the Gotham series finale? Could John Diggle become the Green Lantern of the Arrowverse? Which DC Comics movie star is hosting the MTV Movie & TV Awards? Are you ready for a new Fortnite event with Avengers weapons? What might Avengers: Endgame make at the global box office in its opening weekend? All that and more in this edition of Superhero Bits.