Although this hasn't officially been revealed by Mattel, to my knowledge, here is another Arkham City 2-pack, which I came across on eBay by complete fluke - Batman and Catwoman.
There are a few auctions for this set up on
eBay right now. Matty did say two or three weeks ago that they'd be revealing the next DC 2-packs soon, so my guess is this is one of those soon-to-be-revealed 2-packs Matty was talking about.
There are going to apparently be regular and silver varients to the set, as I found
auctions for both.
More information as it becomes available!
