I don't want to hype people up unnecessarily, but I also had a look into who All Points East follows on Twitter... They've followed Run Music today and they're Run The Jewels' PR or management company. AND RTJ follow the festival on Twitter too. This must be a recent thing, because it came up as the last account they follow......... Could they possibly play the festival or am I grasping at straws here?
EDIT: My bad, APE is one of their followers, it just came up first because I follow them I guess. Still, a girl can dream