Werder Bremen have suffered 2 successive defeats lately, and now they have to fight against relegation in the league. So they may lack motivation in this German Cup fixture.
As for Borussia Dortmund, they are in hot form lately. The new signing Erling Haaland has quickly adapted himself to the team. Besides, now the AH odds are in favor of Borussia Dortmund.
So Borussia Dortmund are expected to win this away game.