No doubt what ever hard competition always Bayern Munich is the winner on Bundesliga and they have bigger chance how keep consistent get trophy every season, I think with completed team and always dominance on every match no doubt keep favorite on the first list with Bayern Munich as close team with Bundesliga trophy next season, looking on transfer activities only Bayern Munich serious how to get star player like Sadio Mane, maybe Dortmund and Leipzig could be team will give fighting for Bayern Munich to get trophy, but looks they always not consistent performance and losing chance before several match ended.
Next season Bayern Munich will also continue to dominate in the Bundesliga with a slightly different appearance because there is already Sadio Mane in the Bayern Munich team who will complete the list of the best players at Bayern Munich. For Dortmund and Leipzig it looks like they have to fight a little harder from now on in terms of getting new players and also have to be more consistent from the start of next season, otherwise Bayern Munich will still be smooth to get the Bundesliga trophy again.
Bayern Munich is obviously going to be the winner of the league title every season because they have almost no competition in the league. Dortmund is the only competition that can be considered, but it is not a very credible competition since they are not at the same level as Bayern Munich. And Dortmund is not a team that chases after trophies, they are just a team for business purposes. Leipzig is also not a viable competitor. So as long as nothing terrible happens to Bayern Munich, I don't think they will be dethroned from the league title.