Dr. Strange as the main villain in an adaptation of Arkham Asylum and City, but take out the involvement of Joker and the League of Assassins.
Bruce Wayne has been ordered to talk to a psychiatrist after a fit of rage when one of his satellites were destroyed(by Zod and Superman) and he shows that anger during a business meeting at Wayne Enterprises, so while he's having his meetings with Dr. Strange, the doctor starts to deduce and deduce until he realizes Bruce's greatest secret. That's all via flashbacks until the final battle where Batman meets Dr. Strange, but the rest of the film follows Batman taking down the still-mysterious Riddler villain and personally escorting him to Arkham Asylum, surprising numerous doctors as Batman is still viewed as this myth. Batman gets himself locked inside because this is Dr. Strange's plan and other villains in the film are used because they can psychologically torture Batman(Scarecrow, Mad Hatter, Clayface, maybe even Calendar Man) up until the final battle where it's Batman vs Strange(who's also dressed up as Batman) where Strange shows up physical attributes that even matches Batman's.
Maybe a few nods to Joker or Two-Face, but I would prefer to see the reboot taking on more of the lesser known villains to the general audience.