... There are so many governments to choose from, I don't see why we are pigeon hole'ing our selves into only have 1 or 2 to choose from at any one point in time. For example this is just option on Democracy it's self:
Direct Democracy:
Representative Democracy:
Deliberative Democracy:
Demarchy:
E-Democracy:
Athenian Democracy:
Liberal Democracy:
Totalitarian Democracy:
ect ect.
Governments are as unique as the back of a person's hand.
The only way to make options like this a reality, is to go in the way Civ is heading and make the specific parts of the government be options in the Civic section.
So to make say, Japan, you would to take Power: Unitary, Executive Branch: Parliament, Power Source: Democracy, Political Power: Constitutional Monarchy.
ect ect.
Having stuff like Digital Democracy in the government section seems redundant when you can make it already through the options in the Civic panel.
I mean seriously, there are only 3 modern political systems, Authoritarianism, Monarchy and Democracy. That is it, every thing else is just a modification of those 3 things. (Now, Anthropological forms, there are more of them, read this:
http://en.wikipedia.org/wiki/Political_system if you are interested)