I know it's centered around 2008 product, but will we see something by Christmas?
Seriously doubt that we'll see anything before the January resets as far as a branded area. Some of the product may show up right before the holidays but it's not going to have a specific space until the resets.
My guess is that this "DC branded area" will have DCUC, whatever JLU is becoming, DC Super Friends, the battle figures (whatever they're called now) and I would guess some Batman and Superman themed role-play stuff, maybe some board and card games, too. There may be some Batman Begins placeholder stuff like Hasbro did with Spider-Man Origins just to "reserve" peg space until the movie toys hit. With TRU getting Batman specific exclusives there may even be a seperate Batman line (although it could be exclusives to TRU) next year that we haven't heard about yet.