No idea what's going on, but it's not showing up at all on the Cartoon Network schedule, apparently for two weeks at least. It's still showing on my TV's schedule too, and I can't seem to find any sort of official announcement. Only thing I can find is this
Really disappointing, I was really really looking forward to Young Justice; always am, but last week's explosive episode has me wondering what's next. And I'm sure Green Lantern's fans are upset too. DC really needs to put the screws to CN over this.