http://attackofthefanboy.com/news/retailer-exclusives-revealed-batman-vs-superman-blu-ray/
Cool inside art replicating the covers.
Single spindle for the 3 discs should be just fine with no top disc coming loose and floating around inside the case as was widely reported with only 2 discs on a single spindle. Reports of the top disc coming loose during transit inside THE MIST for example were plentiful across the forums . . . The multiple disc spindle (IF that part of the mock-up is accurate) has been designed for 3 discs after all.
TBH schizophrenic reaction to this steelbook with first reaction = "Best thing since sliced bread" or "Two for the price of one" but tempered upon reflection to "Belated April Fool's Day joke?" and "A gimmick hopefully not to be repeated".
Surely someone with the skill to manipulate images can give us an accurate mock-up of what this will possibly look like ?
If it REALLY does look as reported (seriously!?) it cannot look like it does at the top of the thread with the spine title facing the same way around for both front artworks and the "WB" insignia should be upside down in one picture and not forgetting the different positions of the "Blu-ray/3D Blu-ray" logos.
Anyway, really looking forward to seeing in-hand pics of this steelbook and also of the slipcover/ j-card and as much as I like the chosen artwork - particularly when compared to the majority of the other dozen or so official poster images - but instead of this (with one image on each face) . . .
. . . I'd have gone for this . . . "Killing two birds with one stone" artwork:-
. . . with this on the back:-

. . . and one of these inside:-
. . . or my favourite for inside:-