My one suggestion (give or take a few words):
"Optional economic civil wars. If a cluster of cities have a larger maintenance than income for a significant period of time a new nation is formed. Offset by either a) Austro-Hungary type government (building the Forbidden Palace) or creation of a common wealth (non permanent alliance with bonus trade routes)."
Optional - the warmongers would have a fit if this was forced upon them.
Economic - I don't think other ways of starting a civil war can be realistically considered unless there is a massive overhaul of the culture system. Currently cities only produce culture of their own nation. Civil wars based on cultural issues would need a city to generate an alternate culture.
I love the idea of empires merging and seceding from each other throughout the game but realistically this will need a massive overhaul of culture or the introduction of a new, less obvious, parameter to make it work. I don't expect it to happen in CivIV.
A couple of ideas I wanted to add but couldn't (due to the fact that they ask for 1 suggestion in 250 words - if I'm tallying an informal poll quite often I don't bother with the entries that break the rules of the questions):
1) When a technology is discovered it is discovered in the city which added the last beakers. This way if a less advanced empire takes control of that city they get a possibility of a beaker boost towards that technology. Example: The US reached the German center for rocket research first and subsequently a lot of German scientists were involved in the Us rocket programs.
2) Technology leakage. I'm surprised no one has suggested this yet. I chose not to because I thought loads would. Possibility of leakage is proportional to trade between empires. Therefore the empire with the most foreign trade will probably generate more income than other empires and so have a technology lead but because they are doing the most trading they have an increased chance of their trade partners learning their secrets (or at least getting beakers).
"Optional economic civil wars. If a cluster of cities have a larger maintenance than income for a significant period of time a new nation is formed. Offset by either a) Austro-Hungary type government (building the Forbidden Palace) or creation of a common wealth (non permanent alliance with bonus trade routes)."
Optional - the warmongers would have a fit if this was forced upon them.
Economic - I don't think other ways of starting a civil war can be realistically considered unless there is a massive overhaul of the culture system. Currently cities only produce culture of their own nation. Civil wars based on cultural issues would need a city to generate an alternate culture.
I love the idea of empires merging and seceding from each other throughout the game but realistically this will need a massive overhaul of culture or the introduction of a new, less obvious, parameter to make it work. I don't expect it to happen in CivIV.
A couple of ideas I wanted to add but couldn't (due to the fact that they ask for 1 suggestion in 250 words - if I'm tallying an informal poll quite often I don't bother with the entries that break the rules of the questions):
1) When a technology is discovered it is discovered in the city which added the last beakers. This way if a less advanced empire takes control of that city they get a possibility of a beaker boost towards that technology. Example: The US reached the German center for rocket research first and subsequently a lot of German scientists were involved in the Us rocket programs.
2) Technology leakage. I'm surprised no one has suggested this yet. I chose not to because I thought loads would. Possibility of leakage is proportional to trade between empires. Therefore the empire with the most foreign trade will probably generate more income than other empires and so have a technology lead but because they are doing the most trading they have an increased chance of their trade partners learning their secrets (or at least getting beakers).