Criterias are obviously far from final but Glory of the Orgrimmar Raider will award Reins of Galakras.
Which is also the 5th boss in the raid.
All I found were some unfinished renderings
http://i439.photobucket.com/albums/q...psa5e00640.png - might be his armor underneath.
Which is awesome, because it looks like we're back to Protodragons
Edit: Let's not forget Galakrond's Rest in Icecrown