One of the interesting ideas that is never questioned in 4x games is the idea of the seperate city/planet screen that has its own development. For all the talk about tactical combat, I wonder if this is "tactical management". Ideally, I would enjoy seeing a civ game where you could play entirely on the map itself, where you see the meat of the 4x's strength, maybe pawning off city improvements to tiles on the map or even doing something different than having cities be the centerpiece.
It seems kind of.. redundant to have all these improvements you build in this seperate screen, while you also have improvements you build on the map.