But indeed, it seems that a draw might be very possible to happen but at least, because Barcelona has Hansi Flick and also Lewandowski who previously had a big influence at Bayern Munich and now they play and work for Barcelona.
Predicting the draw may not be a good option because this two clubs has always not been on favour of draw matches and is been a while I saw them play draw, so is mostly very rare cases to see Bayern Munich and Barcelona play a draw match because it always end against against one side, so actually I'm only saying this based on how it has always been for them but since there has been a lot of new development on this season from the both sides your prediction could also be true because Bayern Munich will be doing a lot of management on there defense that day because they still have an unresolved issue.