Even though there are still details unknown about this DVD release it is up for pre-order at the usual places, like CDJapan. So there is a bit more information out about the release from that, and from the looks of things this is a release any A.B.C-Z fan would be happy with.
First off there will be only one version of the release. But it will have a run time around 50 minutes and about 2000Yen, which for a Japanese DVD release is rather unheard of. There are 30 minute DVDs that sell for around 3500-4000Yen so this is a deal that would be hard to pass up on. And from the description the DVD will have video of music videos, digest footage of past lives, private footage and interviews. Plus if you get the first press version of the DVD you will get a bonus poster. So I really can't see a fan of A.B.C-Z being able to easily pass this up. I think if there is any downside it will be for fans not residing in Japan as the DVD is region 2 coded and you will need a player that can play region 2 DVDs to view it.
What's rather interesting about CDJapan's listing is that it has Pony Canyon as the label/distributor. It makes me wonder if they are the music label A.B.C-Z will be releasing with like Sexy Zone or if they will be like the in house label groups and only have Pony Canyon as a distributor will being signed under either Johnny's Entertainment or J-Storm. Though seeing as those signed under the in house labels are distributed by Sony Music Entertainment I'm more inclined to think that they must also be under Pony Canyon like SZ. And the bonus extra of a poster fits in with the kind of bonuses PC does going off of SZ's CD release.