And if you remember TDK's teaser trailer, it had zero footage. A teaser is meant for that purpose--to tease. This one is perfect. Everyone is now hyped for it.
I thought it was weak because it relied on old footage and word cards to tease, but something else in the trailer has intrigued me enough to make this trailer VERY interesting.
Watch the end where Batman is backing up and Bane's silhouette appears. There's more going on in that scene than what you initially see.