According to official website, it was announced that a Blu-ray disc for Type-moon Fest 10th Anniversary event will be bundled with an original video of supernatural/comedy anime Carnival Phantasm.

The disc will be released January 16, 2013 and it will also include trailer of Kara no Kyouka: Mirai Fukuin.

OVA is 26-minutes long.

via MyAnimeList News