Adult Swim has previously premiered new material from bands like Mastodon, Pig Destroyer, Deafheaven, Thou and more via its various singles series, and 2017 is no different. According to the Twitter of Toonami Director Jason DeMarco, this year's series will include new material from Code Orange, Pallbearer, Sleep, Witch Mountain, Wolves In The Throne Room, and Zeal & Ardor!
Unlike previous years though, this year will see Adult Swim releasing new material from 52 bands over the course of 52 weeks, and not just a seasonal thing. So y'know, holy crap!
You can keep up with the series here, though you can't see what bands are releasing what material when.
https://twitter.com/Clarknova1/status/869955489723019264
https://twitter.com/Clarknova1/status/869951391808319488