Batman: Arkham City hasn't even been out for two week and there is already new content on the way.  But if you're yearning for oodles of new content, keep your expectations in check.  Here's what the Nightwing DLC includes:

"Featuring the intense melee skills of Nightwing, a.k.a Dick Grayson, the trailer showcases the character’s punishing arsenal of fighting moves that can be used against Arkham City’s hardened thugs.  Nightwing comes complete with his own unique gadgets and special moves, and is playable in all challenge maps in the game, as well as two additional challenge maps that are included with the pack: Wayne Manor and Main Hall. The pack also contains a bonus Animated Series Nightwing character skin."

While the trailer shows off Nightwing's killer moves and gadgets, you'll only be playing him in the challenge mode maps.  With no additional story lined up, the draw to purchase this DLC may not be there for some.  The Nightwing DLC will be ready for download on November 1 for XBLA (560 Microsoft Points) and PSN ($6.99), though there is no word regarding the PC version for those that are still waiting to play the game. 

[via TechnoBuffalo]