Board Thread:Naruto 7: Discussion/@comment-3279282-20141031041023/@comment-945885-20141031212440

Well, in the trailer he says that the human race will be destroyed because after all this time, they're still using chakra as a weapon to wage war. It's not really the same as Kaguya, who just coveted her chakra so much that she wanted to reclaim it from her sons.