There will be a major train strike starting as of tomorrow, 06 November (Thu) at 2 a.m. until 10 November, (Mon) 4 a.m. throughout Germany.
This will affect all regular trains (Regionalbahn, ICE) and the S Bahn, but not the U Bahn.
Although Deutsche Bahn will try to run certain trains, expect big disruptions in train traffic, as well as increased car traffic.