Federal Office for the Protection of the Constitution wants to continue monitoring the PDS - it's already absurd what a fuss is being made about a few remaining leftists. The hatred of and fear of communism and Marxism in Germany is still as unbroken as it was in the USA during the McCarthy era.
The fact that today the constitution and the fundamental rights guaranteed to people within it are much more endangered by neoliberalism and the influence of the economy on politics and society doesn't bother anyone.
And you can make such wonderful politics when you publicly declare that the PDS will continue to be monitored by the Federal Office for the Protection of the Constitution. Especially important before potential federal elections.