HardRocker
Student.
These kinds of ideas have been suggested before, but it would be a regressive step. Basically it would just be Civ III/IV mix-n-match factions but with more ability types to choose from. Aside from balance issues, that was a desperately characterless way to design civs.
I never had a feel in Civ IV that I was playing the Khmer rather than "the civ with expansive/creative", and that's fatal to a game that relies so heavily on its historical flavour.
Cynically it's also not something a game studio would do these days if they can sell factions as DLC - no one's going to pay for a civ DLC that's just a combination of existing abilities rather than something new. But in this case, the marketing actually coincides with what makes a better game.
I'd like a proper civil war mechanic, but I think the most fertile ground to explore with another expansion would be economics, an area that is somewhat limited in the current game - international trade, sanctions, different types of trade resources (possibly slave trading etc., maybe manufactured goods as well), corporations (done in some way that isn't just a retread of the religion system, as Civ IV's were). How about a system where you need supply routes in order to trade resources? Control of the Silk Road dominated Western and Near Eastern history for centuries, which it wouldn't have done if you could just open a trade window with China on the other side of the continent and magically swap their spices for your furs...
^this
I like this guy.
