China Increases Troops on DPRK Border

The PRC isn’t discussing contingency plans with the US, but this indicates that it’s still worried about containing the potential wave of humanity that could wash over its border if the DPRK regime falls apart.

Stratfor (subscription required) connects this with some other moves in the region to argue that the neighboring powers are all thinking about the possibility of a collapse. Note that this is contingency planning, not a prediction.