You can stop feeding now. If the lady is downstairs you can leave the second brood super as is, or make sure she is not in the upper super and put an excluder under it. The bees will then readily pass through the excluder to cap off the nearly full super. They are also more apt to start on the next super. Since you probably want a second brood box you can either add another for brood or put the super in question on the bottom after it is capped. The bees will take any future stores all the way to the top. This still does not answer the honey-bound brood section, but you could have your current brood, new brood supers and the syrup bound super for Winter feed.