I confess: I have very little understanding of architecture as a discipline. It does seem tho' that architecture (landscape or otherwise) can help direct attention.
If it can, then, that alone could bear quite a bit of rewilding fruit.
Have you looked at permaculture at all? Generally speaking the folks focusing on it aren't trying to undo domestication, but that doesn't mean they don't have great ideas that can help us rewild. In particular, I'm thinking about the concept of zones. You may want to check it out.
You may also want to look at Keyline water systems, to get a sense of what sculpting the earth (literally, in this case) can do. Again, Yeoman didn't have any desire to undo domestication, but.... I always did like the old fire thief stories.....
I dunno, hopefully this helps a bit.