According to the official website, the episode 8 of Dance in the Vampire Bund
will be postponed by one week and "Special Edition" episode will be aired instead. The recap episode will have additional new scenes.
An announcement from AT-X channel revealed that the airing of the recap episode was not scheduled and AT-X has to cancel one of their programs due to the one week shift of the rest of the Vampire Bund episodes.
Sources: Vampirebund official website
, AT-X news