In total, there are now 5 map variations in the expansion. They are not as visually unique as I would like, but they have a heavy impact on gameplay, which is good. I think some more visually interesting and unique map styles will be a big focus for the second expansion, later this year -- but, this expansion is just brimming over in every other department, so that's a good thing. And these aren't bad, they just aren't as spectacular as I'd wanted.
Glad the new command station and laser sound effects are a hit, too. The lasers were an attempt to make battle sounds less grating, and I'm glad that seems to be working out well. It's been an ongoing project for Pablo between other composition work.
And my wife will be happy to know people like the trailer -- she did the whole thing as far as visuals go, based on the score that Pablo put together. I did all the other videos before now, but I didn't have time to do this one. She did a better job than I would have, anyway.