WAV Scott Headers Export/Import File Type

I would like to start developing Scott Headers for WAV files, but I don’t think it’s possible in v4 yet. If I developed this export/import for this file type for v3, would I be able to easily port it to v4? I’ve longed dreamed of have Scott Headers at least export from Audacity. This is a rather old broadcasting format that includes a ton of metadata for automation software.