Comparison to GalCiv3?

I've watched some video clips and read some topics in the forum, but what are some major differences from GavCiv3?

It looks more refined and smoother!! Although it has been a little bit since I last played galciv3, I feel like there aren't too many differences from what the new version looks like. I don't mean it in a bad way!!! And I like how the zone have been added, that is pretty major! But what else?

I asked about dual monitor support during in a live dev call during alpha or beta for 3, and was told that they thought it was a good idea, but everything would basically have to be redesigned. And it was too far along to implement it. Since this is a new game, any chance that there is support for a second screen? That would make make managing things much easier!!

And maybe I missed it since it is in Beta now, but is there a purchase option that includes all future DLC's, again?