I must have skipped a few pages as it seems to have rocketed up overnight. I presume when the Sky Bridge is up and connected they'll crack on with the office block? Or is it the new roof first and then the office block?
They are almost treated as separate and unrelated builds from what I can see, at these stages. Different teams and types of construction, they don't get in each other's way and don't need to overlap till the final bits connecting them are ready.
Once the skybar bridging element goes on, in conjunction with the terracing, it will be full steam ahead on the new stand roof and quad pod structures. The office will continue level by level simultaneously. As I see it so far.