The only reveg I've done has been puposeful - revegging clones from a flowering plant. To my knowledge, stabilizing the light cycle is the primary way to correct it. You said it's an outdoor grow. Do you live in an area with a lot of artificial light at night? This can interrupt the dark cycle and may be the cause. Others here may have more input.
And i don't know about anyone else, but i see a lot of white pistils... If that was a normal healthy plant, i'd guess at least four to six weeks. Maybe longer if it leans sativa. Go grab some supper with the apostles and settle in for a long ride. Don't worry, it wont be your last. You'l be finished before Passover.
