Bayern Munich will have no problems to extend the title. With or without Lewndowsky, they won't notice. They may miss him in the Cl if they have to play against PSG. But Bayern can continue there too, it can fall both ways there. I wonder which of the top teams can keep up the level. We know from RB Leipzig that they have a strong team, but Union Berlin could fall quite far back with this selection. If they reach European football, that would already be a great result. frankfurt is on a roll in the Cl, but things are a bit less in the league at the moment.
Bayern has been planned to get some strong strikers and additional player for its club. The fact that if there will be so many prepration will have done by bayern caused by it will be facing PSG in the last 16. Union berlin was nothing for now.
It seems like that domination from bayern in this season absolute and another team can't replace bayern in any case. Bayern will be winning the trophy again with more than 80% chance.