HanktheAwesome
Neo Member
We don't know all the costume unlocks yet and Netherrealm has said that there will be additional costumes released as FREE DLC in the future. Most characters definitely have more than their Regime/Insurgency alts...those are just the ones you unlock in the Archives via the armory keys.
Others I know about so far:
Non-Archive Unlocks
Elseworld Flash
New 52 Nightwing
New 52 Shazam
Yellow Lantern Green Lantern
Godfall Superman
Boss Grundy
Unconfirmed Rumours/Mentions on other forums
White Sinestro?
Dress Wonder Woman?
Kryptonite Lex?
iOS Link
Batman Beyond Batman
Knightfall Bane
Arkham City Harley
New 52 Flash
New 52 Green Lantern
Lockdown Superman
Pre-Order
Red Son Grundy
Red Son Superman
Red Son Wonder Woman
Blackest Night Batman
Arkham City Batman
Arkham City Catwoman
Arkham City Joker
Collector's Edition
New 52 Superman
New 52 Wonder Woman
New 52 Batman
Other
CW "Arrow" Green Arrow
Well I'm certainly glad to hear that!
I'm happy to see the Nu52 stuff (Though I'd rather have my damn underwear-on-the-outside versions), and Knightfall Bane is as classic as classic can get, but most of the good stuff is under the pre-order or collector's edition categories (also I guess if you don't have an iPhone you're screwed!), and my beef is with costumes what-I-can-get-in-the-game, which I consider lacking. And Yellow Lantern GL is the regime alt, but it's exactly the kind of thing I want in my alt costumes, so I'll happily give that one a pass.
So based on that list, I see a total of 4 or 5 costumes "neat" costumes that I can unlock, all in that top list.
But like I said, happy to hear about free dlc costumes, and I don't think making us pay for costumes is terrible either, since a precident has already been set on that matter by Capcom and the like.