Kinga Baranowska has said that her Polish expedition may acclimatize on the nearby Broad Peak before attempting K2. Four years ago she made the summit of Broad Peak.
Also her expedition will be taking the Cesen route when they attempt K2. In the right conditions this can be a safer way to the shoulder of K2 than the Abruzzi Spur, though less have made the summit from going this way.
Source: Kinga Baranowska