Only 1 level to go and it history as of last night.
They have built a new temporary loading ramp bridge to the north of the current one to allow the current one to be torn down so they can build the new underground levels.
With the tower down, you can see the full building in the area and get shots of them before the new one is built.
Thought this part was interesting: "five original plaster ceilings segments from the former Concourse Building will be displayed as artifacts within the new building lobby, which precludes the lobby from serving as a location for Public Art"