Saw that too. Teasing stuff like that can be a double-edged sword. Someone let it slip to me at Toy Fair in 2008 that the Turbo Tank was on the way, but I felt compelled to keep my mouth shut and be all ethical and ****. I didn't want to blow up the guys spot, and wanted to maintain a good working relationship with Hasbro.
Fast forward a couple of years after that and a site that I used to be affiliated with got a full Hasbro marketing plan and confirmation of the big AT-AT. They decided to publish it, despite my protestations that it should be dealt with cautiously. What ensued afterward was intense, and included threats of litigation from Hasbro's legal representation.