@Midnight Black..
Cool man. You know..we don't know how Bale will be written. We can all speculate on how he's playing Nolans Batman, etc. But what if it's connected to the trilogy, and they explain it all, yet as the movie progresses we start seeing Bruce use his mind more than he ever did in the trilogy? And he has a new suit. Not as growly in the voice because he's only in a area with the rest of the League, who know his identity. (Just like when he talks to Blake or Selina towards the end of Rises and he's speaking normally).
That's the thing, we could be getting the same Batman from the trilogy, connected and everything, yet at the same time Bale starts playing him differently.
I've been thinking about this. The people working on the Bat suits (on set and this is even told in the official books) that the growly voice is supposed to be a device in the cowl. It connects to the jawline, etc and it's like a switch so when he speaks to strangers/criminals or is simply getting into character, you hear his voice through a growl. Even though we know Bale is doing it manually and Nolan may add some work in post-production.
So if he gets a new suit we may see him not using the growl. Another reason is because of the rage and anger he has while in the suit. But he's let go of that anger now. He would be back as Batman only because he's asked to.
I would love to see Bale go all Keaton while in the suit. Barely speaking and then it's only a clear whisper. Then with the cowl on while speaking to Superman, it's in his normal voice.