I was out in my beeyard and most of my colonies that I had drawing comb have finished their job. I now have done a full reversal. Top box to the bottom, bottom box to the top. What this does is it puts the darkest comb on top and the bottom box more than likely has pollen stored in the frames.
When the main nectar flow starts the bees will fill the new top box of the hive with honey. That will be their winter food stores. The top box now has pollen in the comb. The bees will cover the pollen with honey. The bees move up into the top box usually in January. When the queen begins laying in the top box the bees would have uncapped and exposed the pollen under the honey. The bees will now have natural pollen to feed the brood in February. Also the bees move up on to dark comb much better than new white comb.
One last note, if a beekeeper goes out to do the last reversal and the top box is very heavy with honey it is too late to do the reversal and the hive should remain as it is.