I really question the need for this version of the single as everything on it is on the LEs and I don't think a different jacket image is really worth buying a single for. Especially when there are less song track on the RE than on the LEs.
The LEs have three songs with karaoke tracks as well a DVD. The different versions seem a bit confusing though as it isn't really explained the difference between each but here is the SB version.
The SS version is pretty much the same except for the DVD content.
Also since last night the pre-order information for the new Kanjani8 single Life - Menomae no Muko e - is now out as well as full information about the release. This single will also come out in three editions.
The RE will contain a bonus track not on the LEs and will have a making of photo booklet with the first press of the RE.
The first LE type is the usual DVD with PV and making of.
The second LE type has the continuation of the Prologue of Patch (#5-8) DVD.