i think the longer into flowering you are the longer it will take to revert back.
seems to me it would take too much time. im trying to get a couple of grows in a year.
i would take clones from all and label them and place in a clone veg box. sex out and grow the originals. once sexed get rid of the male clones, veg female clone and top for more cuttings.
when done flowering first ones throw all the clones into flower room.