I like the setting, but what I'm really looking forward is more space battles. The history episodes are not bad, the current moment of peace is. And the real problem is that after so many battles, it doesn't look like anything big will happen soon. You can't simply replace what is lost in a short time.
Oh man. Poor Rukako right?
Not really a spoiler, but maybe you don't want even a hint of what is to come, so I'll hide it below.