As reported by Billboard:
"This album is kind of like the first wave of a lot more stuff to come, just (songs) flying out left and right kind of thing," he said. "That's kind of what to expect: spontaneous releases. ... There's so many other collaborations that I can't really say yet but that have been left over from the record, that I'm going to release soon that are so dope. I'm excited for the new stuff to come out that no one's heard yet."
Seems like Skrillex is finding a lot of inspiration in the studio these days and I'm loving every minute of it.