Man of Steel Sequel: Who will be Batman?

So spiralling out of probably one of the most talked about announcements from SDCC '13 is the topic of who will play Batman, who will supposedly be taking on Superman in what is strongly believed to be a versus film, which will obviously end up with a greater threat arriving and the two having to ally themselves with one another and create the super team up everyone has been waiting for.

So who will play the Batman, I have been reading several sites who all say the same that this will be a Batman who has been around awhile, no origin required, his been doing his thing for some time and is heard of and feared as is to be expected.

The two main candidates the various sites are making a lot of noise about are either Josh Brolin or Ryan Gosling, who both have both appeared in Warner Bros productions, most recently in Gangster Squad. I can't choose between the two, my only thoughts are I find it hard to picture Ryan Gosling as Batman, and Josh Brolin fits the bill but is he to old to play the character, but really if the performance is right then age shouldn't be a concern. I suppose if I had to choose Brolin would be the one.

All I know is that Batman returning to our screens so soon after Nolan's ground breaking take on the character in his Dark Knight Trilogy I would not want to be the actor who has to take this iconic role in the Super Hero Team Up film everyone has been waiting for.