Here is my suggestion as to how it could work:
-Beginning of the month a map theme is presented
-Territory count, location, theme, dimensions are possible restrictions (can vary per month)
-An entry can use any current XML feature
-2 weeks to do initial draft
-1 week vote/fix maps based on suggestions during voting
-1 week final vote (top 2 or 3 depending on # of entries)
-Winner goes to normal foundry process.
-repeat for next month
Examples:
Month #1-45 territory map
-Asia based
-Can't use bombardments
Month #2-At least 60 territories
-Abstract
Month #3-Any territory count
-Zoo theme
-MUST use XML feature Capitals