I suppose I would like to see day/night cycles as well. But either they would be synched for all the planets, in which case people would complain that in itself is too artificial.
Or they would be planet specific, which might mean you could go from planet to planet as you played and maybe hit them during their night cycles all the time for a long stretch.
In which people would complain. "OMG, it's always night when I go to a planet why is the game broken?" And if you think they wouldn't complain about that then you haven't been paying attention.
This is one time I'm willing to give Bioware a bit of a pass if for no other reason than whatever they do people would still do what many of them do best....whine.