I'm sure he can darken up the Phantom I mena come on Imagine an epic skyline battle between Batman and the Phantom.
The movie starts as Joker is escorted to Arkham an event which draws a loathing public audience after all he has done. The second he is about to enter Arkham he is nearly assassinated by a dark figure believed ot be BAtman.
At that same time Batman is thought to be actually killing villains and criminals in grisly fashion. Meanwhile a new lady love steps into Bruce's life and he questions whether he should give up on her as he did to Rachael. I imagine a multilayered story which involves the Joker's backstory and why he is targeted by the Phantom, a struggle with another villain, The Phantom and of course the cops who want to catch Batman.
Just a rough idea of what I would want to see.







