Tet's list of proposed changes looks great - those are very ambitious but important improvements.
About the question of declining cultures: I like the idea of disease/plague, as mentioned on the list. Half-jokingly, I suggested the possibility of a dark age, as a mirror-image of the golden age. One way to implement it would be with a civ-specific dark-age government which stifles commerce, production and happiness for 20 turns or so. The onset conditions for the dark age might be very specific, so for example, Spain's dark age might come with England's discovery of Astronomy, and Rome's dark age might come with Monotheism, provided that they control at least 8 cities at this point (no reason to knock them down if they're not a proper empire). Of course, I bet the editor won't allow complex onset conditions like this one. If something like this is possible, I think it's worth taking a half-serious look at it.
PS: Sorry about my MIA - I got very busy... Might not be able to play-test until a 2.0RC comes out.
About the question of declining cultures: I like the idea of disease/plague, as mentioned on the list. Half-jokingly, I suggested the possibility of a dark age, as a mirror-image of the golden age. One way to implement it would be with a civ-specific dark-age government which stifles commerce, production and happiness for 20 turns or so. The onset conditions for the dark age might be very specific, so for example, Spain's dark age might come with England's discovery of Astronomy, and Rome's dark age might come with Monotheism, provided that they control at least 8 cities at this point (no reason to knock them down if they're not a proper empire). Of course, I bet the editor won't allow complex onset conditions like this one. If something like this is possible, I think it's worth taking a half-serious look at it.
PS: Sorry about my MIA - I got very busy... Might not be able to play-test until a 2.0RC comes out.