If Apple is willing to create a GUI tool for generating the DSL used in SwiftUI, it's not far from enabling UI designers to generate UI by themselves. We may need a lower-level representation for the DSL though. I think it's not a problem that we go one step further and make it happen in the next few years.
Watched several short videos, it seems they are already doing that by dragging component to generate code, by configuring parameters in the code with panels. It's very approaching.
