As eight members of the successful summit team recuperated in Camp 3 today from their 20+ hour push, Galje Sherpa and Sona Sherpa continued to Base Camp and reached it this afternoon. As darkness descends on the Karakorum, there will be no more activity today.
In the meantime, further information on this historic first winter ascent is emerging. Seven Summit Treks just posted this video featuring Sona Sherpa a few metres from the summit, waiting for the full group to gather in order to reach the top together.