The three Gamestops near where I work said they didn't have any Pre-Order Bonuses for B2W2. They looked into their company's info and there was nothing listed for Pre-Order. One said their Books may be on sale with Pre-Order only, but that's not an actual bonus as the store is doing that.
I think at Toys R Us, we are probably going to do Buy B2W2 and get other Pokemon Merchandise % off like time with Black and White. Though that's my store. I can't speak for all TRU's