If there was one thing Cataclysm did correctly, it was giving us a decent amount of dungeons bosses with a mechanic that will fuck up your day if you weren't paying attention. The first and third bosses of Stonecore, the second boss of Throne of Tides, and the first and third bosses of BRC, as examples. My hope for the WoD dungeons is bosses that can kill you, and maybe a trash pack here or there where CC makes its return ... nice and simple ... whatcha think?