Hmm... name suggestions could get a bit spammy... I agree with John, pick any random, unrelated noun. A lesser known term might be more fun.
For example:
http://watchout4snakes.com/CreativityTools/RandomWord/RandomWordPlus.aspxI think it's probably best we don't have people just spouting off random names in one word posts though...
Anyway, I wish you the best of luck. This would be a really cool thing to see in Glest.
Somewhat relatedly, my map wish list holds the ability to make a tileset independant map that contains its own models and information on the "walkability" of the cells. Allows infinite customization of maps, and stuff our maps can't currently do, such as true cliffs, city ruins, and various other organized things that can't be made from randomly rotated, single cell, limited number objects. Of course, that's super ambitious...
At any rate, I don't think this should be a separate ENGINE. What I'd like to see is a testing version for something that can be implemented as a GAE option in the future (not to take over maps, but to allow another type of map to be played, enhancing gameplay).