Happenings with certain NPCs and other things could be quests, but they could not be also. Some things are just happenings in the plot that you can interact with, however they will tend to lead to quests or relate to others in some way or another. Do not think that every NPC will give you something, but don't think that the smallest of tasks are not rewarding either.
Also, time goes by realistically in DStorm. Day and night times are yet to be finalized, however quests will not all be done at the speed of the users. For example, if for part of a quest someone goes on some trek into the wilderness or something, it may be a few days before the NPC returns for the rest of the quest to be completed.
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Regarding Quests
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