The Dark Knight 4 could have introduced a darker, more serious version of Robin, departing from the traditional portrayal as a lighthearted sidekick. DC viewers were left hanging after The Dark Knight Rises, with the possibility of Joseph Gordon-Levitt's John Blake taking up the mantle as Robin. The DC Universe needs to explore darker Robin stories to give the character the respect he deserves, moving away from the campy versions seen in previous films.

The Dark Knight 4 never happened, but it would have delivered a unique take on Robin if it continued from the trilogy's end. While The Dark Knight Rises was the concluding chapter of Christopher Nolan's Batman trilogy, it left DC viewers on an epic cliffhanger. Not only was Bruce Wayne still alive, but Joseph Gordon-Levitt's John Blake discovered the Batcave right after the reveal that John's real name was Robin. Batman was no more, but John...