2  different land maps (hoth and something else), and a space map sounds like a good release.

I dunno, if you guys want the mod sooner, I would say two maps would be best.  After we complete everything we need for two maps, we could quickly release a peliminary version of the mod just for fun, and then concentrate on making a few more maps for a second release soon after.  Just a thought.  The more maps we have to make, the more stuff we have to make to put on those maps, and the more stuff we have to make to put on these maps, the more textures have to be made to put on the objects, and then the objects have to be imported and coded, and then everything has to be tested, and once all the inevitable errors have been returned to the designers from the testers, the designers have to fix everything, and then the objects and maps can be tested again..and again...and again...and, well you get the picture.

Basically the tradeoff is:
-Less maps, quicker release
-More maps, more time until release

Although I have to say it is hard for me to be patient when I can see all of the amazing internal stuff going on right now, just wait until the next update!

I dont care how long it takes!! Just get 3 maps done and im happy. Make the maps good!