Nihilum reached Kael'thas Sunstrider and his council. Screenshots will be here in a few minutes. Thanks to Awake for the screenshots.
See the preview on their site
Update : Added 3 in game shots of the axe. Don't be mistaken, you can only use this axe in Tempest Keep during the fight against Kael'Thas and his council.
They also dropped this on Al'ar tonight