That ship has been around for years. Frankly, when I first saw it, I thought it was a joke, someone's throwaway fantasy idea. OK, a universal class ship, a city in space essentially completely independent, which means that it will likely be more like 1500 years in the future and not just a mere 500.
It also means that they rely on some new form of travel beyond mere warp ability. I mean, ships had already done warp 9.8 in TNG and where did it get them? Wesley got around far better. Between the two series, they came across many "First One" civilizations almost godlike in their technology, so by this ship's time, maybe we have digested some of the technologies we have been exposed to and intercepted and have begun utilizing them.
Technologies from civilizations they've met like:
- The First Federation.
- The Metrons.
- The Organians.
- The Iconians.
- The Cytherians.
So why then does this ship still need two warp nacelles sticking out back like a 1966 Enterprise? I look at these designs from a mechanical POV; I look at ships like the Klingons and the new Romulan ships and I ask myself what does this part of the ship do? How to they get into it, use it, work on it? I question where they place some of the windows and question their need.
I ask myself the practicality of a disc a mile in diameter; why a disc? Why not a sphere where everything is closer together, easier to get around, provides less of a target to hit, its surface which faces equally in all directions, and is structurally more together.
Another thing I don't like is that considering the advanced technology, I see the ship having fewer and fewer discreet components. In other words, the outside of the ship now serves both as the engines, and the shields, and the sensors, and the weapons, rather than this being a weapon over here and a sensor or shield over there. I don't see this ship as having a whole lot of nuts and bolts in it.
I see a ship like this as needing a better way of getting around than a mere propulsion system, really fast speed. It would travel great distances by some subtle trick of space, time, or dimension by utilizing fields and forces already contained within the universe.