Another link you might find interesting The USAP Portal: Science and Support in Antarctica - McMurdo Station Webcams
From the Arrival Heights camera, a road is visible leading directly away from the camera across the sea ice. At the end of the road, barely visible is the Sea Ice Runway. According to reports I have seen this year, the plan is to not use the sea ice runway and have all flights arrive and depart Pegasus (aka the Blue Ice runway), however it looks like they have prepared for contingencies.
That would be the final flights returning personnel from the Ice. The freighter and tanker have offloaded their cargo and the Coast Guard is on it's way to rescue a stuck ship. Time to button up for the winter.
At one point there was talk about keeping two or so plane loads of personnel in McM until the end of March to do some late season science. I have not seen any updates on whether that is happening. When I was there, as soon as we saw the Ice Breaker, it was time to start packing and shipping things north. The end of the season was near.