Cinema Blend has what it believes are details on the follow-up to The Dark Knight. Just as Knight is inspired by the Batman graphic novel The Long Halloween, its sequel will be inspired by Halloween’s follow-up, Dark Victory. Interestingly, Victory primarily focused on Two-Face as the villain, while also introducing Batman’s sidekick Robin. As for The Joker, he was indeed meant to be included in the second sequel to Batman Begins. However, due to actor Heath Ledger’s death, it appears the role may be written out of the picture rather than recast.