I really hope your right Mike. While i probably wouldnt get every variation, it'd be great to have the options so everyone can have their favourite designs.
I'd mostly be down for the Bat-related stuff, and would probably get a new 52 Superman, but i agree it would be great if they spaced them out with all the other characters (Green Lantern, The Flash etc) so everyone could get something at least. Then just slowly expand each line as they go along.
As for Arkham Asylum/City, Im sure they'll make Batman at least, but would be great to see the whole rogues list. I absolutely LOVE the designs from that game, i really think they got them perfect. And with the huge success of both games I think it'd be a wise move. Fingers crossed.