Tim Burton's pivotal Batman is about to receive another sequel that diverges from the Batman '89 comic book and the DCEU's The Flash, coming in print form. Tim Burton directed two of the most influential comic book movies in history in the form of 1989's Batman and 1992's Batman Returns starring Michael Keaton in the titular role. Their impact and legacy were most recently demonstrated in The Flash, where Keaton's Batman made an explosive return to the big screen – but it appears there is more where that came from.
https://screenrant.com/batman-1989-sequel-book-batman-resurrections/