Arrowverse: 10 Implications From Crisis On Infinite Earths
2. Batwoman Now Has More Issues To Juggle With In Her Origin Story
Kate Kane has recently debuted as Batwoman in a Gotham which has really gone through the ringer since the disappearance of Batman 4 years previously. She has battled emotional reunions as well as the troubles of making a name for herself in battling crime in her home city.
One of the most interesting points in Crisis on Infinite Earths was when Kate and Kara had come across an old, grizzled and disillusioned Bruce Wayne on Earth-99 as they searched for the Paragon of Courage. This shook Kate to her core as she could hardly believe her cousin could succumb to the darkness and begin a 'reign of terror'.
Add to the fact that Gotham had apparently gone through a 'Scarecrow incident' in its past involving the train system (to which i speculate might be a possible Batman Begins tie-in), Kate would have her hands full trying to grapple with the challenges of being a superhero in an especially crime-ridden Gotham City.