If you put them back under 24 hours of lights you won't notice much for a couple of week then you'll start to see three finger leaves growing out of the bud sites then eventually you'll notice more vegetative growth. I picked a plants buds that grew full term through spring and left it growing outside, it took about a month for it to really show signs of recovering and about another month before it really started to fill out. Clones from the same plant I started about the same time though have grown twice as big so going with fresh clones might be the best way to go. Because I'm letting this revegged plant grow all naturally wihtout changing the light cycle it will probably double from it's original size.