A new PS3 Trophies revelation would certainly have us believe so. PS3trophies.com
has dug up a Trophies list for the game on PS3 that features unlocks specifically to a "Nightwing Bundle Pack", as part of more pre-order DLC for the game where you need to collect a certain number of medals while playing as Nightwing.
Specifically, each Trophy reads as:
Obtain 78 medals on the original Arkham City and Nightwing Bundle Pack ranked maps (as Nightwing).
Obtain 114 medals on the original Arkham City and Nightwing Bundle Pack campaigns (as Nightwing).
Whether he'll be available across all three platforms at this stage remains to be seen, and if you remember, the first game featured Joker-specific DLC that was exclusive to the PS3, so the same could be true of Nightwing.
The addition of Dick Grayson though, rounds out the playable characters in the game to four with Batman, Catwoman, Robin (Tim Drake) and now Nightwing. Batman: Arkham City has gone gold and is due to release in Australia this October 19.
for a look at our extensive coverage of the game, right here on AusGamers.