I'm half expecting them to go into Siberia, a la Clancy's novel.
No, China & Russia are allies. They signed a Military defense treaty in the early summer of 2001. The United States is in serious peril. You have the internal enemies, traitors in this country (MSM, Democrats, RINOS) trying to divide the country over Iraq & other issues. Also, the latest Supreme Court decision regarding the expansion of Eminent Domain makes all Private land available for public use, think COLLECTIVIZATION. Externally, are enemies are encircling us. Russia, with its technology has formed an alliance with China, Brazil, Venezuela & Islam vast human resources. Russia also has a military alliance with Iran.
As I see it, Siberia has been horribly underdeveloped due to the inability of Moscow to motivate European Russians or even southern minorities to move East. To them, it may actually be part of the plan to partner with the PRC to provide the warm bodies to develop it more intensely. Is a confederation, ala the one or yore between Poland and Lithuania, in the offing, between Russia and the PRC? Many pooh pooh this notion because on first blush it seems so wild. I learned a long time ago not to do that.