As you mentioned - additional tracks through the city center are re-planned for 203x, but with current handicap on all planing and execution levels it will realistically be finished at 2050. It makes public transportation completely unreliable since the city is heavily overcrowded already. Absolutely the same story with S7 extension from Wolfratshausen to Geretsried. No way to build anything before 2040.
Let’s face the true, Germany lost grip on infrastructure projects. The fight against car goes on without offering any alternatives. In theory my journey to the office takes 10 minutes more on the train than with a car. In reality I don’t know where train gets stuck and for how long.