These are some extremely great and informative photos!
It looks like they are waterproofing the ground floor and any exposed column bases that have been left over since the building is only being demo’ed to this point, the site is being left in a similar state to how 2 WTC was left.
Thankfully it looks like the tall overhead construction sheds are being removed. It will be nice to have just that as an item gone since it will vastly open up the enclosed feeling of the area for the time being.