What is the final color of hypertrophic scar if using on it undiluted tea tree oil after two years?

Any color: can be normal for a hypertrophic scar, (well, white, pink or brown; not green or blue probably!) Everyone is different and the tea tree oil probably hasn't and won't affect the color. If the scar is dark in color, certain lasers could help to remove the color. If white or light, a laser might make it smaller but won't make it go away.