Who knows? There are no renderings of the corridors that I've seen that match this, but Mike Minor sketches of some other sets show that these kinds be beams were planned to go through a number of the sets. No one seems to know what the wall treatment would have been.
I don't know what you mean by "the step towards TMP seems...to be too big."
We use essential cookies to make this site work, and optional cookies to enhance your experience.