A few updates for RS info for Wittenberg:
Today while in Wittenberg, we discovered the Castle Church is OPEN!
However, the Luther house is taking its turn at refurbishment, so is closed.
Bus 300 at the train station is now at station 1, not C, as in RS Germany book. There are no lettered spots now.
Wittenberg has a ways to go to be ready for Reformation anniversary.
Almost no one in town spoke English, even young adult food servers.
They have until next year to be ready for the Reformation anniversary. Thanks for the updated info. I was there in 2014 , nice and interesting town to visit, very recommendable, went as a day trip from Berlin.