What is going to separate the DC films from the Marvel films is the dark and gritty feel of them. While most of the MCU films can still be marketed to children, DC and Warner Bros. have decided to market their movies to a more adult audience.
The case here, and this could be a MAJOR spoiler for those of you who don't read the comics, is the fact that Zack Snyder is choosing to introduce a much older version of Batman in 2016's "[Batman v Superman: Dawn of Justice](movie:711870)." The benefit of this is that they can use Bruce Wayne/Batman's life experience, rather than another origin.
This isn't to say there won't be a version of Batman's origin told, but we're going to see certain events that take place much later in Bruce Wayne's life.
So what's the latest rumor? That Jason Todd, the second Robin, exists in this DC cinematic universe, and that he has already been killed by Jared Leto's Joker. That can only mean that they are going to possibly set up Red Hood.
Now this is very cool since Red Hood is such an awesome Batman villain. In the same way that Winter Soldier is connected to Captain America's past, the same goes for Red Hood, minus the whole memory wiping and cryogenic freezing.
So the rumor goes, the Joker and Harley Quinn are not together at this current time because of the guilt she feels for the death of Jason Todd.
Back story: In the iconic Death in the Family story, the Joker actually murder Jason Todd, or so we think. Flash forward a few years a villain is causing major havoc. This is Red Hood. Red Hood is Jason Todd, who is seeking vengeance because he believes that Batman failed and abandoned him. It's pretty twisted, but Batman comics have always been more complex.
At any rate, this story line will allegedly tie together some plot points for both "Batman v Superman" and "[Suicide Squad](movie:2283363)."
Now that is some serious juicy. If they do introduce Jason Todd, it will certainly screw with an older Batman who believes he was murdered.