It's like I stated elsewhere. "Been cancelled" could also mean that Cartoon Network has ended its affiliation with the program and is jettisoning it like an escape pod, but if a few other episodes are being made they could show up on DVD and BluRay, online as downloadable content or even pop up on a channel like Disney XD. Other television series over the decades were cancelled by one network due to dropping ratings but then picked up by another one....Taxi, Diff'rent Strokes, In the Heat of the Night
to name just three.
JediNews rarely posts bad information, so if they heard something from multiple sources connected to the show then there's probably some level of truth to this. I just hope we get a lot more details and very soon so the mystery will be put to rest.