"The DIA art is on the table as well."

Why? There's little chance that Detroit would be unable to pay its existing bond obligations. Some people seem to be imposing their view of bankruptcy from the viewpoint of the corporate world on the city. But the city has the ability to continue to bring in revenue in a way that a failed company can not. Detroit's major bond obligations are already covered, either through payments from customers of the water and sewer system or from the dedicated bond millages. What remains can be met by the revenues that the city's guaranteed to receive either through its millages or constitutional revenue sharing. Not enough? That likely would result in more cuts to services but it's not as if the city has to have a fire sale of assets to meet its bond obligations.