Sky effects?

[SatansReject]

On the live stream yesterday a question was asked about the the sky, and the question asked. "Will there be planetry rotation in the game? an example of it would be like the moon, it might be in a different place once in awhile like every other day-night cycle. I know there will be for the sun for the different lighting affects and stuff." Matt replied it would be the same as PS1 and I asked myself, is that fair? If your are already putting in so much effort for the Sun and lighting affect why not do it at same time.