[rkangel]

That design is extremely close to the new design of train in use on the circle line. The seating arrangement is a little different and they use monochrome LED signboards rather than LCD (for sensible reasons), but the continuous unobstructed design is there, along with actual aircon.

It's an impressive sight to look from one end of the interior to the other when it's not full of people (and going straight).

[arien]

Yeah, I've seen those, but they are slightly different and have been available for a few years already (I believe before 2014, the date of this project, but I could be wrong).

I'm glad to see on the other reply that the plan hasn't been scrapped. Some of the lines could really use new trains (with proper air ventilation/filtering, especially).