Batman should not be over 35 in the movie or in real-life. In "Batman: Year One" continuity, Bruce wayne started out at 25 as the Bat. Start there and a Batman under 35 could have MORE than enough experience in that situation. Forget the Nolan movies and start over without a new origin series. I wish all those great actors (Hamm, Armitage, etc) above 35 could be ruled out automatically.
Even Scott Adkins, who I actually think would do fine with good material, gets the axe in that equation. LOL.
If we want to "stick to the source material", Bruce and Clark have always been portayed as near the same age, so I hope WB does the same.