At home Borrussia Dortmund have just won the game tonight, now they'll recover and go prepare for war against Newcastle United. They both look good but my verdict would be passed tommorow once Newcastle is done playing.
I'm not expecting a soft tie, a rough and hard one is mandatory, it'll be shameful to see Borrussia Dortmund leaving for Europa League.
Do you find them convincing? Borussia Dortmund won with only one goal vs Werder Bremen in a home match. If they fail to put the ball in its place most of the time then this will remain a problem for them. Newcastle United isn't Werder Bremen, it is a top team in EPL which is already a higher level competition comparing to Bundesliga.
Since Dortmund will be away, I expect them to attack vigorously. They should be the first to score a goal if they take good use of whatever chances got.
I'll be excited only of they can go top of the group, Manchester United struggling so I'll be supporting the rest of the Premier League clubs present in the Champions League.
I think Newcastle United chances aren't lower than Borussia Dortmund especially in a home game for them. Newcastle is already doing better in Champions League than Dortmund.