Few months ago i would pick Bayern to title with all my savings, but after the reinforcements Dortmund made and the Supercup it could be (should be) two horse race to the finish. I mean if Dortmund will be able to balance the squad between all competitions with the depth they have they could go for title. With Hummels Dortmund would be favorite IMO, without him is a question how the defence will cope. Bartra is ok but nowhere near Hummels and prone to youth mistakes. Mkhitaryan and Gundogan will be easily forgotten as Mkhi is simply overrated and Gundogan after the injury is not the same footballer (his career will be similar to Sahin trust me). With the addition of some top defender (Toprak maybe), Borussia would be my pick for the title :), still without the signing of another defender Borussia can win the title for odds about 8.00. And there is odd of around 1.50 to Dortmund be first (with exception of Bayern) IMO this is pretty sure investment, the rest of the teams sold their best players and are nowhere near as consistent as Dortmund.