I would add the inability to publish to more than one site. It would be nice to be able to publish some notes to, say, a personal blog site, another set of notes to a work project site, etc.
Also, because of the limitations mentioned in the comments above, I find I have to maintain two versions of notes — one for editing and one for publishing. That’s rather awkward.
OK one more related to the previous comment…a common workflow I encounter is that I want to publish a note but some parts of the note are private and not intended for the world to see. The only way to do that right now is to create an copy of the note and then maintain two version. It would be nice to, for example, code-fence private sections of a note to exclude those sections from being published.
BTW, I’m not a “power” Publish user. I thought I’d give it a try to see if it would be useful and to support the developers. However, because of these and other limitations, I am struggling to find a real-world use case for continuing to use it.