Any time I see the words "Ambient" and "Black Metal" used in regards to the same band I take notice.
Hope Drone's bandcamp has their eponymous e.p. available at a "name your price" amount, so if you dig what you hear head on over and help support them.
Interestingly enough, "Hope Drone" was also the working title of Godspeed You! Black Emperor's set-opener when my wife and I saw them at San Francisco's Great American Music Hall back in April of '12.