can you elaborate? are you talking about size of theprocedurally generated game? or the various features?
there is tactical combat. the only known caveat is that you can't directly control your ships during combat, though its been hinted that there are things you can do to prepare for a battle.
emergent storytelling means that there's no previously esablished story. and yes characters are confirmed so there is an RPG element much like CK2
1. It is written "Space is big. Really big. You just won't believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist, but that's just peanuts to space."
So, the question is twofold. First, just how much interstellar real-estate are we talking here? A single galaxy, of which there are billions in the universe, can be thousands of light-years across. Traditional space strategy games don't operate on this kind of scale. Second, what level of representation are we talking about here? Planets? Star Systems? Space Counties containing dozens or hundreds of stars? For reference, our Galaxy (which is big, but not unusually so) contains around 200-400 billion stars.
So my expectation is that we'll be fighting over star systems in a constrained little chunk of space rather than fighting over the whole galaxy, but there's a lot more room out there and if you try for truly galactic strategy, it can get unmanageable fast.
2. So, something like Gratuitous Space Battles? I could be down with that.
3. EUIV technically has characters too. They just matter a lot less.