Batman: The Final Crusade
It would be a trilogy, but the story would take place over the course of one night like the Arkham games.
It would be an older Batman who has already lost Jason Todd.
Batman is Denzel Washington, and Morgan Freeman is Alfred.
1st movie is Batman rounding up a bunch of B-class criminals then captures Penguin who was employing them. Penguin gives Bats an ominous warning before he gets dropped off at GCPD. Bats goes back to the cave only to find Bane there holding Alfred by the neck. Fight ensues and Batman takes that back breaking L and Bane leaves, but not before setting everything on fire.
2nd movie is Nightwing taking up the cowl (played by Michael B. Jordan
)
Too many criminals to round up and Nightwing gets help from Azrael (played by chiwetel okafor) and Lucius ( Lt. Daniels from the Wire). They eventually run into the League of Assassins and several piff fights ensue, with Nightwing beating Ras in a sword duel and Azrael tossing the knocked out Ras off Wayne Tower due to the injustices he has caused and his heretic ways.
Don't know the direction I'm going for the third movie.