You're going into Justice League and you're going to reboot the biggest franchise instead of exploiting the popularity of that continuity (in the absence of Nolan directing)? If the central reason people think that the Batman of the Dark Knight trilogy can't work in the world of Man of Steel is because that version of Batman is too real then they need to go back and watch all three movies again. Batman falls from impossible heights in the first and second films, there is a microwave bomb in the first film, Batman drives a car that can jump from roof to roof, the car transforms into a bike which through the magic of CGI can roll, and in the third film he has a helicopter that could never practically fly in a million years. If there are no plans for future solo Batman films within the Dark Knight continuity; then what is the reason for not using that Batman? Why should Batman be rebooted when it's Wonder Woman and The Flash who need solo films?