Even if Dortmund wins their next match, they won't maintain the streak till the end of the season, they will still lose one or more of their reminaning matches. Dortmund is not as confident has Bayern Munich in terms of pursuing a title, not before, not now. Let's assume for now that they have succeeded a Wolfsburg, their next clashes in line is Monchengladbash, Augsburg and Mainz which I am very sure they won't win all. If Dortmund is serious for title let them groom players and keep them for competitions.
To be honest i have tought the same. I thought that Bayern probably does not even win to win every match of those last 3 because Dortmund will probably not be able to win each of their own remaining 3 games. I expected Dortmund to be nervous today because it was possible, that they basically lose the race for the Bundesliga title today after the win of Bayern yesterday. I also thought that Wolfsburg would be a pretty tough nut to crack for Dortmund.
Now the game is in the 80th minute and Dortmund is leading with 5-0. Of course for such a result you also need a bit of luck like that goal of Bellingham that hit the post but still went into the goal afterwards in a pretty weird way, but there is no doubt that Dortmund is totally dominating that game and that the win is absolutely deserved.
Bayern Munich are at the top of the Bundesliga. Second place is Dortmund. If Dortmund secure victory in the next match, this team will once again be close to Bayern Munich's points. Currently, Dortmund and Bayern Munich are fiercely fighting for the top spot in the points table.