So, I just finished watching the recording of the last livestream, and while seeing mining again, it crossed my mind that it would be really awesome to be able to fly through the mines you dug out, and look in every direction. And while mines gave me the idea, I think the same applies to flying through buildings and around your town. (So it would basically feel like flying in creative mode in minecraft does.)
It seems to me like something like this should be easier to implement than the x-ray or slices mode, because I think rendering basically doesn’t have to be changed, just the way the camera controls work. A problem I see, though, is what to do with portions of the map that are far away; the potential options would be, I suppose, either just render whatever you can and accept that it’ll cut off at some point (either because the end of the map is reached or because no more of the map can be loaded in) or just render fog in the distance.
edit: To clarify: I wouldn’t want this to replace the existing modes, I would want to have it in addition to the existing modes.