This show strikes me as a lot like Loonatics Unleashed; some people with deep pockets want to hook in people using something 'cool, edgy and popular' as a hook to appeal to people. I don't think it'll work, the whole anime thing constricts Timm's creativity if anything.
You also have to remember Batman: TAS was not only innovative, it was a creative reengineering of the original Batman franchise - from camp to clandestine. At best, this show will be a stylilsh rehash or a weaker recycling of the ideas from that series since.
Personally, I'm expecting something similar to Afro Samurai, which while nice looking was a pretty dumb show.