According to NBC:

Standing Rock Chairman: Pipeline Plan Denial ‘A Win For All Of America’ 1:57
The secretary of the Army Corps of Engineers told Standing Rock Sioux Chairman Dave Archambault II Sunday that the current route for the controversial Dakota Access pipeline will be denied.

“Although we have had continuing discussion and exchanges of new information with the Standing Rock Sioux and Dakota Access, it’s clear that there’s more work to do,” the Army’s Assistant Secretary for Civil Works, Jo-Ellen Darcy said in a statement Sunday. “The best way to complete that work responsibly and expeditiously is to explore alternate routes for the pipeline crossing.”

So, this is a win for Standing Rock and the native community there.

It is not yet a win for the climate. The pipeline should not be built at all. But this is still good news.