As convention season is basically upon us right now, WizKids is giving us a look at all the sorts of things you can get from them as convention exclusives. There's one set of previews of stuff that you can buy directly (my personal favorite being Batman with the huge bomb from the Adam West TV series), and the others are prizes for the various events. Along with all those previews they have a pair of Donatellos from the upcoming Teenage Mutant Ninja Turtles set.
As you can see, they've got a little bit of everything. If you're a fan of either DC or Marvel, you have a whole bunch to pick from. Then they've got several pieces for the TMNT line, including a Turtle Van, and a black-and-white version of Casey Jones and The Shredder.
Convention Previews 1
Convention Previews 2