Dawn of Justice: UPDATES ON DAWN OF JUSTICE BATMAN V SUPERMAN

Zack Snyder confirmed that Batman will be in his late 40's and wil have been Batman for 20 years prior to the evens of Man Of Steel. He will also be a more broken down Batman. He's even lost everyone close too besides Alfred which hints that Dick Grayson (Robin) and Batgirl might've existed in the DC Cinematic Universe. Or even Jason Todd (Robin) and Dick Grayson (Nightwing) as well. The DC Cinematic Universe will be one big story and Zack wants all of the directors to do what they want but still make sure there are continuity errors.
So all of us DC fans can feel fine now that they're not just going to wing it like we feared they would. Snyder also confirmed Batman was responsible for putting all of the villains behind bars before the events of the Suicide Squad movie.

We've known for a while now that Batman would be older in this film, but director Zack Snyder has confirmed how old, and how long the Dark Knight has been active: "We are playing him 45 or 46...He has been Batman for 20 years. All the history is there...He has lost those near and dear to him, and not necessarily from old age of disease..."  So yeah, this is stuff we've known for a little bit now, but it's nice to hear a more firm timeline.  The new Batman himself, Ben Affleck also chimed in on his thoughts and initial reluctance to take on the role:

"Initially I thought, 'I'm older, it doesn't seem like the right sort of fit for me. Then Zack pitched me his concept for this older, more broken, kind of f**ked up Batman. It was something we haven't seen. We have seen that Batman is willing to cross the line to protect people. That vigilantism has been a part of his character all along, and we are tapping into that mentality when faced by something as potentially as deadly a Superman.

"We want to assume that Batman has reached this point in his life and career as a superhero, and Superman represents a sort of philiophical change. He is a paradigm shift for Batman: 'I've been fighting criminals all my life, trying to find justice, and now I am confronted with a concept that is transcendent to me.' In the face of Superman, a man robbing a bank doesn't matter."