The latest strategy to save the Tasmanian devil is to place a number of them in quarantine on two islands off the coast. This is intended to maintain a healthy population away from the other sick devils. This is reminiscent of the last Tasmanian Aboriginals who were relocated to islands where they almost completely died out.

Despite this, the Department of Primary Industries, Water and the Environment answers the question in their FAQ:
“Are devils endangered?” with a firm: “No:”
They are researching what kind of cancer it might be.