The Batman 2's mysterious villain is a topic of much speculation, and a recent tweet from co-writer Mattson Tomlin might offer a clue. Tomlin shared a photo of the first Batman comic he ever read, Batman #181, which introduced Poison Ivy. This could be a subtle hint at the upcoming installment, especially given the character's absence from the big screen since 1997. If Poison Ivy does make an appearance, it would be a significant departure from her previous portrayals, as the character has appeared in multiple animated films and games, but a grounded, realistic take could be intriguing. The sequel's cast is growing, with Sebastian Stan and Brian Tyree Henry joining, and the criminal organization, the Court of Owls, rumored to play a significant role. The film's director, Matt Reeves, has been keeping the plot under wraps, but the anticipation is palpable. With a release date set for October 1, 2027, The Batman 2 promises to be a thrilling addition to the DC universe, and fans are eager to see how it unfolds.