I’ve actually seen glutanimate talking about the development happening on IO Enhanced, so that it will utilize the native-IO framework. And that includes a method for converting existing IO Enhanced notes to native-Anki IO notes.
See, for example – Image Occlusion Enhanced [Official Support Thread] - #123 by glutanimate – and Image Occlusion addon convert to Anki's built in IO - #2 by glutanimate .
I think what you’re asking for is on the way.