"That said: I recently promised my fleet that I am going to stay untill the last member of my fleet leaves the game,"
So right here you say you are going to quit, even though under very specific conditions, you do say "I am going to stay untill"
What I'm saying is give the game some more time, the devs have slowed the content development down to work on the F2P part of the game, but once that is done they will work on new missions and other cool things. We still haven't seen the other half of the skill revamp yet and they are still working on the borg part of the missions. So give it time.