I havent been able to figure out the editor yet but I have a good idea for a map that I hope someone else can make.
-The solid lines are dirt pathways, about the same size as the current endor pathways.
-The curly lines show where the trees start/end.
-Through the middle is a river which comes from a waterfall to the east.
-Yes that is an AT-AT down the bottom corner.
-The path to the west is going to be pretty much a flat speeder path that crosses the river by a hollowed out log.
-The bendy path going up to the shield bunker will be up hill.
-The rest of the map will be relatively flat with an odd hill or too here or there.
-The Ewok village will be quite large and be placed up against the side of the waterfall.
-The rebel starting CP will be the landing pad from Geonosis and will be destroyable.
-The AT-AT will have to climb out of a ditch while being bombarded from above.
-All the turrets will be the raised ones from Yavin.
-The map will be about the same size (if not bigger) as Hoth.
I would Imagine it wouldnt be all that hard to make since everything you need is already in the game. I tried to make the map as close to ingame style as possible but if you have trouble understanding a certain part of the map just ask.