They could be. But in general they are detailed and particular, for the given situation, site, context. Those details matter enormously. Repetitions or versions have to fill in details, and the choice of details is crucial to moral and narrative aspects of an actual design. Design is a matter of actual problems, not only or mainly hypothetical ones.
Designs are real.
We can ask how we might live within them, how they will age and wear down or be renewed. We can speculate on alternatives with the sense that these alternatives are real enough. But my point here is that our speculative imagination allows for the Repetition and the Narrative. To wonder what a character might do, or how we might act, in a play's situation or a design is part of our understanding of that design. Although there is Closure, there is as well our capacity to transcend that boundary to see more clearly the consequences and meaning of the design.