My first thought was I would need to focus military much more. Losing cities straight every seventy turns doesn't quite seem fun, especially when the rules which cities is not clear. But it will create interesting situations, whether we should conquer our or neighbors rebelled cities xD. But any kind of conquest decreases populations, so this will slow the game down. Also any kind of construction will be interrupted, like wonders, which might be painful. Better prepare for the era breaks. I definitely like not having "normal" ages, thus might be well the case to buy the pack, if the mode is not free, and perhaps the pack is worth it alone... The golden policies are definitely a good variation. Kind of looks like they are using the one third modified within a title.