A PV was shown during today's noitaminA press conference. Unlike Shiki and Yojouhan Shinwa Taikei, it isn't getting uploaded on the anime's official website though... so I've been looking around and found a
LQ version (Nicovideo), recorded from the live stream of the conference. All of it is animated (with some scenes I suspect might be from the OP), & we get to hear the OP two months early.
Edit: Here's the
trailer with a much better quality. Thank Manuloz on Manganimation.