I would expect Batman cases to sell out before DC New 52
When it comes to superhero popularity Batman may be #1. I base this on the number of movies, cartoons, tv shows, etc... Superman, Spider-Man, X-Men, Avengers... they are all very popular but I think Batman wins the gold metal and I think that will show up in sales for these cards.
For me, there is just too much going on right now in non-sports cards. I may pick up some Batman if they are still around in February, but I wouldn't be surprised if they aren't.
The sketches look AWESOME and I expect them to get better with each Cryptozoic sketch. I get the impression that the artists prefer working with them over some of the competition. But maybe that will fade with time....