There will be 9 climbers who will be part of an expedition to K2 this winter. The Russia National Team ExpeditionK2 Winter Ascent will have these 9 climbers who will be climbing K2 itself. There will also be other expedition members such as an expedition head, doctors, and photographers etc.
Russianclimb has more information on the planned ascent of K2 by this expedition. The site is in English.