It looks like from this picture by DZH22 that the structure fore the over clad is already in place. So I wouldn't expect them to change designs at this point.
Keen eye for detail and good catch, Bob. In engineering we have a
highly technical term for what this approach represents
Random, I share your curiosity and hope either/both initial cleaning and maintenance has been accounted for in the design, else we're stuck with a clouded, dirty trapped space over time.
Last thought: maybe there hasn't been a stall in progress after all, as they've been installing the over-clad mounting system and we've just not visually noticed the progress there as we had below with the facade swap.
EDIT: it also looks like those upper floor windows were bigger to begin with in the original facade. I would guess, once the over-clad is in place, that they'll remove the original glass and install some deeper windowsills on the interior side so that the overclad approach is not detectable by interior occupants.