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Third:
While I understand where you are all coming from with the 2D thing... you have to understand that 3D development opens up so many doors that would otherwise be closed. This relates not only to sales and thus franchise sustainability, but content as well. We have absolutely no idea what the content updates will be for the next classic Civ style game. But I guarantee you that when it does come out, there will be core foundational aspects of the game that would have been impossible to implement or severely limited without a 3D engine.
Could Civ IV have been done without all the particles and 3D graphics? Probably... but it would have lost a lot of flavor, and I'm sure the changes in the next installment will be just as sweeping as the change from C3 to C4. Not enough people will buy C5 if it's just a 2D version of C4 with bug fixes that make late-game turns take less time to play out.
Third:
While I understand where you are all coming from with the 2D thing... you have to understand that 3D development opens up so many doors that would otherwise be closed. This relates not only to sales and thus franchise sustainability, but content as well. We have absolutely no idea what the content updates will be for the next classic Civ style game. But I guarantee you that when it does come out, there will be core foundational aspects of the game that would have been impossible to implement or severely limited without a 3D engine.
Could Civ IV have been done without all the particles and 3D graphics? Probably... but it would have lost a lot of flavor, and I'm sure the changes in the next installment will be just as sweeping as the change from C3 to C4. Not enough people will buy C5 if it's just a 2D version of C4 with bug fixes that make late-game turns take less time to play out.