Chinese state media are reporting that the Communist Party will on Nov. 8 hold its 18th congress, at which it will select a new generation of top leaders for the country. Also, the party has expelled Bo Xilai and is transferring the matter to judicial authorities. The case of Mr. Bo, the former Chongqing party secretary whose wife was convicted of killing a British businessman, has cast a shadow on the Chinese leadership in the runup to what’s expected to be its most sweeping reorganization in a decade.