I think that it is reasonable to expect this to occur at some point. In fact https://forums.swift.org/t/enabling-static-linking-on-windows was specifically about this.
There is a path that would enable this that I brought up on the thread, and it seems like others agree that it is a reasonable approach. Right now, its a matter of getting everything implemented. There are a ton of things that can be done to add new functionality or improve the development experience on Windows.
I am trying to reduce some of the complexity in getting started, so as much as I would like to get this done, I think that it is pretty low on my priority queue. However, since there is at least an idea of how to approach the problem, others should be able to implement the functionality.