Armageddos recorded a fraps movie of this upcoming 25 man instance tailored to level 70 players. The encounter looks quite similiar to Onyxia, though it requires seemingly a lot more coordination to execute.
Youtube link : http://www.youtube.com/watch?v=YwsHY-zFfnE
Comments
@bandyka: http://www.wowwiki.com/Magtheridon and yes hes a pitlord
Pit lord?