In other threads I've suggested a much more dynamic Great Power system. Great Powerdom should be handed out on a Continent by Continent basis (5 GPs for Europe, 3 for every other continent), have minimum score requirements,
and finally require a realistic system of power projection. As I've said elsewhere, America needs to influence Latin America for the game to work, but Egypt? Austria should be active in Italy, but in Brazil?
Power projection would be some sort of complex formula that basically calculates how many troops you could feasibly ship to and field in that continent based on naval range, transports, and the like. Any country would be able to turn
itself into a World Power and influence multiple continents, but it should require hard work creating a navy AND the system of bases to support it. Minimum scores would cut down on silliness. Great Powers should begin as:
EUROPE
Britain
France
Prussia
Austria
Russia
Potential = Italy, Greater Netherlands, Ottoman Empire
NORTH AMERICA
America
Britain
France
Potential = Mexico
SOUTH AMERICA
America
Britain
France
Potential = Brazil, Argentina, Paraguay
AFRICA
Britain
France
Ottoman Empire
Potential = Successful colonial powers (Germany is a historical example)
ASIA
Britain
France
Russia
Potential = Civilized China, civilized Japan, civilized independent India, expansionist Netherlands