I don't know what's up for sure, but retail stores are reporting that the Batman Begins Deluxe Edition has been discontinued and no more will be shipped out, at least for now. To be on the safe side, if you want that DVD, I'd run out and pick it up ASAP. It's still listed on a few websites, but it has also been said that once their stock runs out of them, that'll be all there also. It's already been taken off of BestBuy.com for now.
My local Best Buy and Target have sold out and have told me they wouldn't be getting anymore either.
There could just be a problem with production or something, and it'll be released again in the future, but you never know. It's not available on DDD anymore either, but they do have it for pre-order to be released on 11/08/05, but you never know until it's actually available.