Me neither and i understand expectations. An like you I think it would be awesome to get more. Though i'm realistic on the prospect regardless. Even after my post, just talking in a general sense.
Although, they have or had both bridges built and rendered. An one of them was a playable piece of some sort a year or two ago. As seen in one of the trailers, with characters roaming through it. It was pretty quick but it was there, weird to cut that stuff because it was high detail and had all of the hallmarks.
There could be stand alone missions that take place around the bridge - they modeled a whole stadium for just one mission