At the same time I am a little nervous that they seem to be making a point of being different from past adaptations. Sometimes that pays off, like with the Nolan movies, but other times it ends up a disaster, like Batman & Robin.
How was B&R a pointed departure from what came before? It was in much the same vein as
Batman Forever, only more so -- and it was pretty much a blatant attempt to replicate the campy flavor of the '66 sitcom.
Anyway, it's pretty standard for each new animated Batman series to be a departure from what's been done before.
Batman: The Animated Series was radically unlike any prior animated Batman -- or any prior animated superhero show ever. Its successor
The Batman took a different tack by being about a young Batman in the early years of his career -- although if anything it suffered from not being distinctive enough, so that sometimes it just felt like a less impressive version of what had come before. Conversely,
Batman: The Brave and the Bold took a radically different tack from its two predecessors and was acclaimed for it, and was certainly unforgettable.
There have been so many Batman adaptations by now that the best chance any show has of being successful is if it does bring something new and fresh to the table. Just doing more of what's been done before would feel redundant. Of course doing this one in 3D animation is an obvious departure, but it wouldn't be enough on its own.