In observing
@drum118 's excellent pics above..............I have the following thoughts:
1) Supports are going in reinstate some sort of finish on the trackside walls.
2) So far, I don't think I see any sign of supports for new ceiling finishes for over the tracks
3) It looks like they squaring off the ceiling over the platform.
4) Is the lighting being permanently shifted to that lower height?
5) Also, the grey tiles in the foreground clearly don't match the rest in the 3rd from the bottom pic, so they are either different tiles, or one set has been painted, I do hope someone on the project make sure the end product looks cohesive.