Eventually we are going to need to establish some form of "regional government" if only just to keep me from eventually telling everyone to just bugger off and leave me alone because of having to handle everything. 

The right to participate in that government will probably be based on citizenship in the region which will probably be based on a nation's/member's map claim.

If a nation has no map claim then they won't be able to vote, run for office, etc because they are no longer a citizen.