Wolfsburg previously managed to beat Dortmund with a score of 2-0 when Wolfsburg played at home, but at this moment Wolfsburg was playing away and it seemed that the away match made it difficult for Wolfsburg to be able to provide a difficult resistance for Dortmund. In fact, in the 14th minute Dortmund managed to score one goal which was scored by Adeyemi and it looks like Wolfsburg will not be able to make a goal back in this match.
After all, so far this season Dortmund has a good win ratio for home matches. What's more, at this moment Dortmund is focused on continuing to make a close gap to Bayern Munich. So, with these factors, I'm sure Wolfsburg won't be able to hold Dortmund even if it's only for a draw, because of course Dortmund will be targeting three points in this match.
With Dortmund current condition which requires three points to closer with Bayern, it seems like Dortmund can win and got three points, Dortmund also seemed to dominate the game. Right now Dortmund had also scored again, by Haller. By leading 2 scores in the first half, it will be very difficult for Wolfsburg to make a surprise in this match, although there is still a second half but I'm sure Dortmund will not disappoint their fans at home.
*Edit*
Malen can get scored and Dortmund have more advantage, now the score was 3-0.
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.