Well you can already see some parts of the world are at different places. It looks like sunrise on the Cyseal beach, morning in Cyseal, a rainy afternoon on the west end, turning to night at the lighthouse, and night in the forsaken gardens as well.
Yes, which made me curious about what they planned to do back when their intentions were to add day & night schedules. The designers seem to be relying heavily on mood lighting and weather effects for the different areas in the game (e.g. night at the lighthouse, in other areas it's always raining - purely cosmetic rain, by the way, that doesn't seem to apply a "wet" status to anyone, making Larian's "gimmick" concern even more confusing because they're already doing the very thing they discussed avoiding).
If day & night schedules had been implemented, were they planning to display these locations under a variety of different lighting and weather conditions? Would some players get to the lighthouse battle and find darkness and thunderstorms, while others are posting screenshots of a sunny lighthouse encounter? My assumptions at the time was that this was going to happen.