Ok, seeing as the new "these are the lectures that will be available"; PDF file just got released, I have already started planning:

Lecture ECTS Prof
Agiles Projektmanagement und Coaching 9 Kretzschmar
Verteilte Architekturen und Middleware 3 Kriha
System Engineering und Management 3 Kriha
Spezielle Themen mobiler Kommunikationssysteme 3 Maucher
Mediensicherheit und Digital Rights Management 6 Schmitz

==> 25 ECTS (should in theory be enough. I think I only need 23)