Winning the league is realistic, I think the Munich management gives a target according to the team's condition. Kompany has been given enough funds, he is given space to choose players according to his wishes. They should be able to learn from last year's mistakes. Management also has to be wise with the coach, I think the change of coach with a short term is also bad.
As for UCL Munich, they are an experienced team, so I think they are able to compete. But the current condition I am quite doubtful that they are able to win UCL Trophy this season.
Is it not too early to make such conclusions on Munich wining the Bundesliga title? I think we need wait and see them play against big teams like Dortmund and Bauer Leverkusen before we can decide if they can be able to make it, but based on observation and the preparation Vincent Kompany has put in place, the team looks balance and they can do better in the Bundesliga. For Champions League, I can’t say because domestic leagues are quite different from the Champions League, although Bayern Munich have good record and experience in the Champions league, but Vincent Kompany is new in the competition and it will be hard for him to adapt quickly, so they cannot be guaranteed in the Champions League.
Winning the UCL trophy at this point shouldn't and wouldn't be the stress of Bayern Munich because personally I see that as stressing and a huge unrealistic pressure on the team, although they may look like it's very much achievable but the truth remains that in reality they may not be able to achieve the champion's league trophy not even with their experience and their depth, as the new coach needs sometime to be able to get on with his tactics and introduce it to the team such that they get to familiarize with it and produce results with it, all this will cost them some time which they may not have at the champions league but a good attempt at it wouldn't be a bad one.