[Stuart]

Looks like the rear of those monoliths do indeed show graphics...

As I suggested up thread, I think one of the purposes of the windows (with wood panelling/LED strips on the outside) would be to allow long-shots from outside the set to give an impression of more space. Perhaps in those circumstances you'd want to have some sort of image on the back of the monoliths if you wanted to use a moving 'Skycam' set up.

I suppose we'll find out in June whether that sort of shot is for Breakfast or Sport.

The sofa/desk rostrum is certainly mobile, as shown in the different pics we've seen.  I would think you'd only want to be looking out onto the Sport Newsroom (which has it own monolith) for Sport bulletins, rather than for Breakfast.

I would imagine for Breakfast they'd want to be using the rest of that new space within the set.

That's not the best quality Tweet pic in the world, but I think it clarifies what I mean.