The rules as written have you draw as many nations as there are players. You can now optionally include more nations than players in the draft pool.
I gave the option of including 0-6 extra nations to choose from or just including every nation.
If you want to be able to assign nations in some way other than drafting from a random pool, or you just want to always play your favorite nation, you can now make all nations available.
Each player still gets a different nation. I don't plan to implement multiple players having the same nation. (Imagine a Polish-Lithuanian Commonwealth infinite loop!)