I agree about the bat-god. There's no reason for Lucius (or to show him) in the reboot. I think all those super intelligent things that make Batman who he is in the comics, weren't there in TDKT to that extent because it was just a more human story or "realistic". He wasn't the Sherlock Holmes type.
But we need the Bat-God in the new Justice League/World's Finest/Solo movies most definitely. Not only physically (along with more youth to him) but mentally too.
Bale's Bruce was smart but no genius. Lucius kind of was. Bale's Bruce was a good martial artist and could pack one hell of a punch but he wasn't the greatest ninja you can think of. Bale's Batman would get destroyed by Bruce Lee or be taken out in the first round of a Mortal Kombat tournament
t:.
Again, within the context of the trilogy, and how that universe was set up? It was perfect. It fit like a glove. But it's not possible in this JLA universe, especially since ive seen Man Of Steel and I can see that the level of CG destruction/fights wouldn't fit in the Nolan-verse (more in a Arkham-verse) and the power that Superman, Faora and Zod have calls for the Arkham-Batman all the way.