Currently, the exams contain much more problems than have to be solved for a grade 1.0. That is on the one hand good (so that you definitely find problems are are prepared for), but on the other hand bad, since it is a huge effort for those who have to prepare and to correct the exams.
This is a bit too early to be discussed in depth. Apart from this, there is the plan to add reactive games on the list of exam problems which is an alternative view on the mu-calculus.