As I mentioned in Dev Log 3, this is one of the two polls I wanted to do. The question here is about a "Saved Game Preview", which would be in the Load Save menu on the difficulty select screen.

It would show a small version of the map, with tower icons in roughly the spots they're in based on the save data. Hovering over them would show you stats like their upgrades, damage dealt, and cash produced.

Note that this might not get into v0.1, and may have to be saved for v0.2.