...
Actually i'm just suggesting the visual effect, i think the physical is harder to code
Scaling in this kind of game is relatively simple. An algorithm to combine multiple blocks into one giant block is a little trickier, because of all the edge cases.
I suspect the following needs to happen first, before this suggestion will be workable:
1. The devs will implement combining multiple display blocks in one rectangular group into one large display block. (They have already expressed interest in making this happen, because having a big-screen tv front and center on bridges is a popular scifi trope.)
2. Crew "Quarters" will probably be prototyped, probably involving rectangular areas, either created from a player-defined rectangle, or an area defined by some sort of "quarters" control system, like a block. This will go a long way towards helping define rectangular areas, to combine blocks into scaled-up mega-blocks, similar to giant displays as mentioned in point 1. This will probably be done before combining display blocks.
3. A huge discussion on how large rounds (beams, cannon shots, missiles) will work. I think it will be start out working exactly how it works right now, with the larger round having its tip where the current regular-sized round is and the rest following behind. It won't be as fun for a huge beam to make a tiny hole, but at this time, I think moving some of the damage amount to explosive effect would be the only solution that could make a large beam work as players would expect.