From: Alexandria, VA
UV's engine is the basis for WitP, AFAIK. The map will be colossal, but you will still have the same unit detail - individual ships, pilots, etc. There will be more ship types, more countries, and apparently some sort of production model that you can control as the player, but there are no details of that as yet due to the early stages of development (Alpha) and the NDA the testers signed.
From what's been posted here, it seems you will be the Supreme Commander and there will be sub-commands underneath you that you can control directly or put on some sort of computer control.
Read back over some of the posts from the last two months or so and you'll find screenshots and info from the developers and alpha testers.
Hope that helps...
"The Paraguayan Air Force's request for spraying subsidies was not as Paraguayan as it were..."