Hello!
Same here, it could be some scheduled maintenance, or they could be prepping us for some (bad) news (mass rejection haha) I am worried because some people (although all of them humanities students, and I'm applying for mechanical engineering) got their acceptance email on Thursday, and my status is still "Vorauswahl erfolgt", no email.
Whichever way, I wish you good luck and keep us posted. I will post if something happens.
For the record, my DAAD office is the one for Eastern Europe and Turkey, application deadline 15th of November and I had the interview in early February.