Superman crashes into a wall. His costume torn and ragged.
Batman presses the shard of kryptonite against Superman's throat.
Drawing blood.

SUPERMAN
Listen to me, Bruce. It was Luthor. He arranged this.
Don't you see? He knew you couldn't resist. The
challenge. The uncertainty.

Blood trickles down Superman's throat. Spidering down the Superman emblem.
Dripping onto the floor.

BATMAN
What are you saying, Kent?

The Kryptonite cuts deeper. Superman screams in agony.

SUPERMAN
He masterminded this whole situation. He set you up. You played right into
his hands. This was nothing more than a game for him. Entertainment.
He wanted your attention elsewhere.  A distraction. Me.

Superman slumps to his knees.  Catching his breath as Batman backs away.
Dropping the Kryptonite.

SUPERMAN
But there's more. Things you don't know. He's created something.

Gaining his strength. Superman staggers to his feet.

BATMAN
What?

SUPERMAN
An abomination.

His eyes flash red. Destroying the shard of Kryptonite with a laser blast.

BATMAN
What do you want from me?

SUPERMAN
Your help.

URSA
What an undemanding male this
Superman must be.

LOIS LANE
Yeah, and you could use a tuck here
and there yourself, sister.

MICHAEL
A deer has to be taken with one shot. I try to tell
people that but they don't listen.

COL. JESSEP
Son, we live in a world that has walls, and those walls have to be guarded
by men with guns. Who's gonna do it? You? You, Lt. Weinburg? I have a
greater responsibility than you could possibly fathom. You weep for Santiago,
and you curse the Marines. You have that luxury. You have the luxury of not
knowing what I know. That Santiago's death, while tragic, probably saved
lives. And my existence, while grotesque and incomprehensible to you, saves
lives. You don't want the truth because deep down in places you don't talk
about at parties, you want me on that wall, you need me on that wall. We use
words like honor, code, loyalty. We use these words as the backbone of a life
spent defending something. You use them as a punchline. I have neither the
time nor the inclination to explain myself to a man who rises and sleeps under
the blanket of the very freedom that I provide, and then questions the manner
in which I provide it. I would rather you just said thank you, and went on your
way, Otherwise, I suggest you pick up a weapon, and stand a post. Either way,
I don't give a damn what you think you are entitled to.

There's a rumor going around that they are casting for a new Bruce Wayne. There's also a list of actors they're considering for the role. One of them is Josh Brolin. As this is the internet, I'm not entirely sure how accurate these rumors are. But that sounds like a great choice. But that depends on the direction that Zack Snyder is planning on taking this sequel.

This would make a great way into a Justice League movie. The two main characters coming together and perhaps at first facing off against each other for whatever reasons. Then having to work together when some menacing threat appears on Earth, and this in turn leads to the formation of the Justice League. Food for thought.

Especially if another Justice League character is introduced who's trying to stop this threat when it arrives on Earth and ends up befriending The Caped Crusader and Man of Steel.

And an older Bruce Wayne/Batman could take on that father figure role that Clark Kent/Superman needs from time to time. They don't always see eye to eye, but it's good to have someone to confide in when things seem to be going wrong.

I guess it comes down to whether or not he'd want to put on the suit.

UPDATE:  Ben Affleck. Interesting choice. Seems to be getting a lot of heat on the internet about this. Probably because of what happened with Daredevil (2003). That really wasn't his fault. These things happen. He's a good actor, it's not like he rolled into Hollywood and got every role under the sun. He's worked hard to get to where he is. If he bulks up, gets gritty with the role of Batman and Bruce Wayne, gets rid of the beard, what's the problem? And he's the right age. Bruce Wayne needs to be senior to Clark Kent. Experience. Again, this is the internet, so it could all be a hoax. Good luck to him. Not sure about the title:  Batman vs. Superman. Seems a little silly. Hope it's just a working title.

When it was announced that Michael Keaton was going to be Batman in Tim Burton's version there was a huge uproar. Batman (1989) and Batman Returns (1992) ended up being very successful and Michael Keaton was very good as the Caped Crusader and a brooding Bruce Wayne. Mr. Affleck will be fine. Just make sure the costume, the car and gadgets kick ass.

DEEP THROAT
Trust no one.