Denis Urubko is on his way to K2 to attempt his 26th 8000m peak without O2. That would tie him with current record-holder Juanito Oiarzabal.
No word on whether they are using oxygen or climbing together. A couple of hours ago, some Pakistani climbers announced that they are heading to Gasherbrum I, but Urubko had no time to coordinate with them. In the end, he decided on K2.