It's happened to me a few times, though I don't think it's supposed to.
Also, I must say that I love the way Rocksteady did this. It seems like they learn from their mistakes in every sense of the word. Not just in terms of how they improve their games, but the marketing, as well. One of the things that I hated, when Arkham City was announced, was that it was announced a few months after Asylum, and then we didn't hear anything for like a year and a half. Don't get me wrong, it's been a long wait, but the way everything's going, it's perfect. They announce it three years later, on Batman's 75th anniversary, and, from the looks of things, it seems like they're pretty late in the development cycle; October's a pretty quick turn around for a March reveal.