Can we expect support for macOS window management using a Window protocol?

The ideal workflow to manage all presentation logic would be to use swift UI without relying on storyboards. As it stands, creating a macOS application using swift UI includes a storyboard file to manage application windows. While swift UI is a HUGE step in the right direction, It's definitely lacking when it comes to macOS specific support. a sample implementation is as shown below.

import SwiftUI

struct WindowView : Window {
  var title = "My window"
  var width = 200
  var height = 300
  var resizeable = false
  var toolbar: Toolbar {}
  var sidebar: Sidebar {}
  var body: some View {}
}

This would be a game changer making swift UI a much more powerful addition to the ecosystem and a complete solution for UI management.

Any thoughts?