A woman wearing a mask rides a bus in Berlin, Germany. Photo: Xinhua As veteran German leader Angela Merkel plans to step down in a few weeks, the future of the massive China-Germany economic and trade relationship could enter a period of uncertainty with very different views and rhetoric coming out from German politicians about the direction of Berlin’s China policies. Recent reports of tough remarks about China’s economy from the leading candidate to succeed Merkel and other German officials have added to the uncertainty. While tough rhetoric from certain German politicians is expected, given tensions between China and the…