Is the one-handed backhand a dying art in women's tennis?

She was a seven-time Grand Slam champion and a former world No 1, but Justine Henin also possessed arguably the greatest one-handed backhand in women's tennis.

Is the one-handed backhand a dying art in women's tennis?
She was a seven-time Grand Slam champion and a former world No 1, but Justine Henin also possessed arguably the greatest one-handed backhand in women's tennis.