It would be great if there would be a way to export an SVG file from Substance Designer in somehow as its tools to create parametric patterns based that can be based in SVG input nodes offer huge potential.
I am aware the aim of Substance Designer is creating textures for 3D visualization, but keeping in mind Adobe now owns the company, there might probably be a way to explore that option, or if not, add in somehow the potential of substance nodes and parametrical design to apps like illustrator.
Not an easy request, though I think the potential is there.
Thank you.