Hamilton Alexander Ortega Borgore was working on an ID of skrillex and knife party, you can check that here in youtube, they say might be in the new skrillex album this year
the kp collab was from 2012. no way he'd release it. im pretty sure borgore only remade it for fun, because of he released the song owsla could sue him for releasing it without permission (which is why he never released it)