I'd like to see IJ take it a step further beyond AsciiDoc, by supporting Antora to generate and deploy static websites. When combined with Antora-Assembler its also possible to generate PDFs using the ruby-based AsciiDoctor PDF.
I'm currently introducing a Docs-as-Code workflow using Visual Studio Code at my organization, because of the very permissive license terms of VSC and the decent AsciiDoc preview function. Mostly though, I find reading adoc files quite easy until lots of Antora snippets (which don't resolve) and conditions start getting added in. A lot of technical writers I've met have had a hard time understanding XML, which is nothing to say of the average office worker who wants to open up their old copy of Office 97 and write a completely unstructed document with a WYSIWIG interface.
IJ IDE licenses start to add up, so if IJ is competitive against Oxygen, this might make sense for a lot of organizations to jump over.