The comic that arguably has the most influence on The Penguin is Batman: Dark Victory by Jeph Loeb and Tim Sale, which serves as a direct sequel to Batman: The Long Halloween. In Batman: Dark Victory,

Of course, The Penguin falls between The Batman and its upcoming sequel, which means that the show needs to set the stage for The Batman: Part II. So let’s charge up the Bat-signal and examine the state of Gotham City after the Penguin waddles away.

Here's how The Penguin sets up The Batman Part II — and why Colin Farrell's Oz Cobb might not be the main villain.