Union berlin vs stuttgart is an important game to keep an eye on since bayern will face dortmund this might be a golden opportunity for union berlin to close the gap between them and the first two spots, i think they will win easily stuttgart are last and they had a horrible performance this season.
I thikn that the result between union berlin against stuttgart can be known easily. Union berlin was easily beating frankfurt and i see no reason for berlin to lose against stuttgart.
There will be some interesting matches to come but the hottest match will be bayern vs dortmund. This will become a very important match caused by it's gonna be the debut of bayern under a new coach thomas tuchel.
Some matches like berlin vs stuttgart, leizig vs mainz amd freiburg vs hertha look so easy to be predicted unlikt bayern vs dortmund.