Just giving the promo a third listen now. It's the trobbing, sparse, gravity-questionable Darker Side of Mt Heart (the song, rather than the album). Sounds like they've maybe been listening to Burial, Tortoise and minimal techno remixes of Battles. There is a noisy party-anthem tucked on the end. And no, I'm not gonna call it gruffbient.
A few facts about Liars sixth album:
1) The album is entitled 'WIXIW' (pronounced '"wish you")
2) It is an 11-track album
3) 4th June is the release date
4) Mute is the label.
5) The first track from the record will be 'No.1 Against The Rush', is streaming here: http://www.facebook.com/LiarsOfficial
6) June live dates, include Field Day Festival in London on the 2nd and headline shows at London's XOYO (12th) and Manchester's Ruby Lounge (15th).
That's probably more than you need to know for now.