I think they're stregthened their squad this season. They haven't lost any important players but have added a lot of depth, especially in attack with Nkunku, Lookman and also Schick at the end of the window.Such sad things on a Friday: Supporting RB and moving to Munich. Must hurt. I feel for you.
I also see RB as real contenders. Hope that iam wrong. But Nagelsmann is so good, and with this squad, which is not worldclass or even the best in the league, but its well balanced and fits to the coach, they could get some results in the longterm.
Hope that the CL will break their neck and reveal their lack of deepness. Unlike in the EL they will give everything. And they are in an easy Group so maybe they are getting some games.
For neutrals it would be the best if all 3 teams (Bayern, BVB, RB) getting their shit together and it all clicks, so that we will have an exciting season.
Also the top 6 could get very interesting: Frankfurt, Bremen, Leverkusen, Gladbach. Good squads and/or interesting coaches.
In defense also atleast they have two players for every position.