Batman - The Telltale Series: Episode 3 is releasing today, October 25th, alongside this new trailer. Taken from the video's description:
Penguin's brutal attack broadcast on live TV has left Gotham City reeling. As Bruce and Batman, you'll dig deeper into the web of intrigue surrounding the newly revealed Children of Arkham.
Meanwhile, behind closed doors, the mysterious Selina Kyle reveals more of herself to Bruce. And in the aftermath of the attack, Bruce's friend and Gotham's new mayor, Harvey Dent, is a deeply changed man. Who can be trusted when the future of Bruce Wayne - and the Batman - could be determined by the flip of a coin?
It looks like Harvey Dent is making his conversion to Two-Face in this episode, but there's no indication of whether or not your choices made in previous episodes have any effect on his path. Regardless, an introduction of a fan favorite villain is never a bad thing.
You can watch the trailer for yourself below.